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31464750745680 = 2435722675574043
BaseRepresentation
bin1110010011101111101010…
…10010101000100001010000
311010102000000120122020121220
413021313311102220201100
513111004302142330210
6150530412411045040
76425152566323400
oct711676522504120
9133360016566556
1031464750745680
11a0311425699aa
1236420b5440780
131473161ac0a05
147aac8b386800
1539870c7a9c70
hex1c9df54a8850

31464750745680 has 120 divisors (see below), whose sum is σ = 113465744057952. Its totient is φ = 7191943024896.

The previous prime is 31464750745679. The next prime is 31464750745721. The reversal of 31464750745680 is 8654705746413.

It is a tau number, because it is divible by the number of its divisors (120).

It is a hoax number, since the sum of its digits (60) coincides with the sum of the digits of its distinct prime factors.

It is a Harshad number since it is a multiple of its sum of digits (60).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1337775262 + ... + 1337798781.

Almost surely, 231464750745680 is an apocalyptic number.

31464750745680 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

31464750745680 is an abundant number, since it is smaller than the sum of its proper divisors (82000993312272).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

31464750745680 is a wasteful number, since it uses less digits than its factorization.

31464750745680 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2675574073 (or 2675574060 counting only the distinct ones).

The product of its (nonzero) digits is 67737600, while the sum is 60.

The spelling of 31464750745680 in words is "thirty-one trillion, four hundred sixty-four billion, seven hundred fifty million, seven hundred forty-five thousand, six hundred eighty".

Divisors: 1 2 3 4 5 6 7 8 10 12 14 15 16 20 21 24 28 30 35 40 42 48 49 56 60 70 80 84 98 105 112 120 140 147 168 196 210 240 245 280 294 336 392 420 490 560 588 735 784 840 980 1176 1470 1680 1960 2352 2940 3920 5880 11760 2675574043 5351148086 8026722129 10702296172 13377870215 16053444258 18729018301 21404592344 26755740430 32106888516 37458036602 40133610645 42809184688 53511480860 56187054903 64213777032 74916073204 80267221290 93645091505 107022961720 112374109806 128427554064 131103128107 149832146408 160534442580 187290183010 214045923440 224748219612 262206256214 280935274515 299664292816 321068885160 374580366020 393309384321 449496439224 524412512428 561870549030 642137770320 655515640535 749160732040 786618768642 898992878448 1048825024856 1123741098060 1311031281070 1498321464080 1573237537284 1966546921605 2097650049712 2247482196120 2622062562140 3146475074568 3933093843210 4494964392240 5244125124280 6292950149136 7866187686420 10488250248560 15732375372840 31464750745680