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157040455 = 51121341487
BaseRepresentation
bin10010101110000…
…11111101000111
3101221111111000011
421113003331013
5310200243310
623325531051
73614551615
oct1127037507
9357444004
10157040455
1180710900
1244713a87
13266c5660
1416bdc6b5
15dbc078a
hex95c3f47

157040455 has 48 divisors (see below), whose sum is σ = 228981312. Its totient is φ = 102643200.

The previous prime is 157040449. The next prime is 157040473. The reversal of 157040455 is 554040751.

It is not a de Polignac number, because 157040455 - 213 = 157032263 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 322222 + ... + 322708.

It is an arithmetic number, because the mean of its divisors is an integer number (4770444).

Almost surely, 2157040455 is an apocalyptic number.

157040455 is a deficient number, since it is larger than the sum of its proper divisors (71940857).

157040455 is a wasteful number, since it uses less digits than its factorization.

157040455 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 568 (or 557 counting only the distinct ones).

The product of its (nonzero) digits is 14000, while the sum is 31.

The square root of 157040455 is about 12531.5783124074. The cubic root of 157040455 is about 539.5154031579.

It can be divided in two parts, 1570 and 40455, that added together give a square (42025 = 2052).

The spelling of 157040455 in words is "one hundred fifty-seven million, forty thousand, four hundred fifty-five".

Divisors: 1 5 11 13 41 55 65 121 143 205 451 487 533 605 715 1573 2255 2435 2665 4961 5357 5863 6331 7865 19967 24805 26785 29315 31655 58927 64493 69641 99835 219637 259571 294635 322465 348205 766051 1098185 1297855 2416007 2855281 3830255 12080035 14276405 31408091 157040455