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10242157540 = 2257140117987
BaseRepresentation
bin10011000100111101…
…01110101111100100
3222102210102111211011
421202132232233210
5131433443020130
64412152552004
7511544621416
oct114236565744
928383374734
1010242157540
11438648160a
121b9a0b2604
13c72c15364
146d239a9b6
153ee29352a
hex2627aebe4

10242157540 has 48 divisors (see below), whose sum is σ = 21867076224. Its totient is φ = 4028864000.

The previous prime is 10242157511. The next prime is 10242157543. The reversal of 10242157540 is 4575124201.

It is not an unprimeable number, because it can be changed into a prime (10242157543) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 560427 + ... + 578413.

It is an arithmetic number, because the mean of its divisors is an integer number (455564088).

Almost surely, 210242157540 is an apocalyptic number.

10242157540 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

10242157540 is an abundant number, since it is smaller than the sum of its proper divisors (11624918684).

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

10242157540 is a wasteful number, since it uses less digits than its factorization.

10242157540 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18468 (or 18466 counting only the distinct ones).

The product of its (nonzero) digits is 11200, while the sum is 31.

The spelling of 10242157540 in words is "ten billion, two hundred forty-two million, one hundred fifty-seven thousand, five hundred forty".

Divisors: 1 2 4 5 10 20 71 142 284 355 401 710 802 1420 1604 2005 4010 8020 17987 28471 35974 56942 71948 89935 113884 142355 179870 284710 359740 569420 1277077 2554154 5108308 6385385 7212787 12770770 14425574 25541540 28851148 36063935 72127870 144255740 512107877 1024215754 2048431508 2560539385 5121078770 10242157540