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157061401 = 7791911487
BaseRepresentation
bin10010101110010…
…01000100011001
3101221112112201221
421113021010121
5310201431101
623330212041
73614666650
oct1127110431
9357475657
10157061401
1180725612
1244724021
1326702053
1416c06197
15dbc6aa1
hex95c9119

157061401 has 16 divisors (see below), whose sum is σ = 182845440. Its totient is φ = 132135120.

The previous prime is 157061393. The next prime is 157061417. The reversal of 157061401 is 104160751.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 157061401 - 23 = 157061393 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (157061431) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 104880 + ... + 106366.

It is an arithmetic number, because the mean of its divisors is an integer number (11427840).

Almost surely, 2157061401 is an apocalyptic number.

It is an amenable number.

157061401 is a deficient number, since it is larger than the sum of its proper divisors (25784039).

157061401 is a wasteful number, since it uses less digits than its factorization.

157061401 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1764.

The product of its (nonzero) digits is 840, while the sum is 25.

The square root of 157061401 is about 12532.4140132697. The cubic root of 157061401 is about 539.5393888824.

The spelling of 157061401 in words is "one hundred fifty-seven million, sixty-one thousand, four hundred one".

Divisors: 1 7 79 191 553 1337 1487 10409 15089 105623 117473 284017 822311 1988119 22437343 157061401