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97243972470 = 2345294139803
BaseRepresentation
bin101101010010000110…
…0010100001101110110
3100022000002200122020000
41122210030110031312
53043123424104340
6112401231452130
710011540061551
oct1324414241566
9308002618200
1097243972470
11382717618a7
1216a1a987046
13922983a218
1449c7005698
1527e22d8d30
hex16a4314376

97243972470 has 80 divisors (see below), whose sum is σ = 270494793360. Its totient is φ = 25037522496.

The previous prime is 97243972453. The next prime is 97243972481. The reversal of 97243972470 is 7427934279.

97243972470 is a `hidden beast` number, since 9 + 7 + 2 + 4 + 397 + 247 + 0 = 666.

It is a super-2 number, since 2×972439724702 (a number of 23 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 2046412 + ... + 2093391.

It is an arithmetic number, because the mean of its divisors is an integer number (3381184917).

Almost surely, 297243972470 is an apocalyptic number.

97243972470 is a gapful number since it is divisible by the number (90) formed by its first and last digit.

97243972470 is an abundant number, since it is smaller than the sum of its proper divisors (173250820890).

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

97243972470 is a wasteful number, since it uses less digits than its factorization.

97243972470 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4139851 (or 4139842 counting only the distinct ones).

The product of its (nonzero) digits is 5334336, while the sum is 54.

The spelling of 97243972470 in words is "ninety-seven billion, two hundred forty-three million, nine hundred seventy-two thousand, four hundred seventy".

Divisors: 1 2 3 5 6 9 10 15 18 27 29 30 45 54 58 81 87 90 135 145 162 174 261 270 290 405 435 522 783 810 870 1305 1566 2349 2610 3915 4698 7830 11745 23490 4139803 8279606 12419409 20699015 24838818 37258227 41398030 62097045 74516454 111774681 120054287 124194090 186291135 223549362 240108574 335324043 360162861 372582270 558873405 600271435 670648086 720325722 1080488583 1117746810 1200542870 1676620215 1800814305 2160977166 3241465749 3353240430 3601628610 5402442915 6482931498 9724397247 10804885830 16207328745 19448794494 32414657490 48621986235 97243972470