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48721953630 = 23572345722073
BaseRepresentation
bin101101011000000011…
…100000001101011110
311122202111221200121010
4231120003200031132
51244240310004010
634214344320050
73343242526020
oct553003401536
9148674850533
1048721953630
11197322aa989
129538a73026
13479605047c
142502ac6010
15140258e620
hexb580e035e

48721953630 has 128 divisors (see below), whose sum is σ = 139759147008. Its totient is φ = 10628462592.

The previous prime is 48721953589. The next prime is 48721953661. The reversal of 48721953630 is 3635912784.

It is a self number, because there is not a number n which added to its sum of digits gives 48721953630.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 2196274 + ... + 2218346.

It is an arithmetic number, because the mean of its divisors is an integer number (1091868336).

It is a 1-persistent number, because it is pandigital, but 2⋅48721953630 = 97443907260 is not.

Almost surely, 248721953630 is an apocalyptic number.

It is a pronic number, being equal to 220730×220731.

It is a practical number, because each smaller number is the sum of distinct divisors of 48721953630, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (69879573504).

48721953630 is an abundant number, since it is smaller than the sum of its proper divisors (91037193378).

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

48721953630 is a wasteful number, since it uses less digits than its factorization.

48721953630 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22570.

The product of its (nonzero) digits is 1088640, while the sum is 48.

The spelling of 48721953630 in words is "forty-eight billion, seven hundred twenty-one million, nine hundred fifty-three thousand, six hundred thirty".

Divisors: 1 2 3 5 6 7 10 14 15 21 23 30 35 42 46 69 70 105 115 138 161 210 230 322 345 457 483 690 805 914 966 1371 1610 2285 2415 2742 3199 4570 4830 6398 6855 9597 10511 13710 15995 19194 21022 22073 31533 31990 44146 47985 52555 63066 66219 73577 95970 105110 110365 132438 147154 154511 157665 220730 220731 309022 315330 331095 367885 441462 463533 507679 662190 735770 772555 927066 1015358 1103655 1523037 1545110 2207310 2317665 2538395 3046074 3553753 4635330 5076790 7107506 7615185 10087361 10661259 15230370 17768765 20174722 21322518 30262083 35537530 50436805 53306295 60524166 70611527 100873610 106612590 141223054 151310415 211834581 232009303 302620830 353057635 423669162 464018606 696027909 706115270 1059172905 1160046515 1392055818 1624065121 2118345810 2320093030 3248130242 3480139545 4872195363 6960279090 8120325605 9744390726 16240651210 24360976815 48721953630