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257131150655033 = 23731249523323431
BaseRepresentation
bin111010011101110000000010…
…111001010011111000111001
31020201102111102222211212200102
4322131300002321103320321
5232200314044031430113
62310512230410045145
7105106053421342664
oct7235600271237071
91221374388755612
10257131150655033
1174a25788170a86
1224a098a61197b5
13b0624956ba265
14476d2dd6966db
151ead8882a1758
hexe9dc02e53e39

257131150655033 has 32 divisors (see below), whose sum is σ = 272267655360000. Its totient is φ = 242331453112320.

The previous prime is 257131150655023. The next prime is 257131150655111. The reversal of 257131150655033 is 330556051131752.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 257131150655033 - 222 = 257131146460729 is a prime.

It is a super-2 number, since 2×2571311506550332 (a number of 30 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (257131150655023) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 10973960828 + ... + 10973984258.

It is an arithmetic number, because the mean of its divisors is an integer number (8508364230000).

Almost surely, 2257131150655033 is an apocalyptic number.

257131150655033 is a gapful number since it is divisible by the number (23) formed by its first and last digit.

It is an amenable number.

257131150655033 is a deficient number, since it is larger than the sum of its proper divisors (15136504704967).

257131150655033 is a wasteful number, since it uses less digits than its factorization.

257131150655033 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30009.

The product of its (nonzero) digits is 1417500, while the sum is 47.

The spelling of 257131150655033 in words is "two hundred fifty-seven trillion, one hundred thirty-one billion, one hundred fifty million, six hundred fifty-five thousand, thirty-three".

Divisors: 1 23 73 1249 1679 5233 23431 28727 91177 120359 382009 538913 1710463 2097071 6536017 8786207 29265319 39340649 122614423 150328391 477129241 673102337 2136368287 2820131729 8950852879 10973972543 49136470601 153145414327 205869616217 3522344529521 11179615245871 257131150655033