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157052311 = 1316772341
BaseRepresentation
bin10010101110001…
…10110110010111
3101221112002021021
421113012312113
5310201133221
623330102011
73614631313
oct1127066627
9357462237
10157052311
11807197a9
124471a907
13266cab80
1416c02b43
15dbc4041
hex95c6d97

157052311 has 8 divisors (see below), whose sum is σ = 170148384. Its totient is φ = 144101280.

The previous prime is 157052299. The next prime is 157052317. The reversal of 157052311 is 113250751.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 157052311 - 29 = 157051799 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (157052317) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 34000 + ... + 38341.

It is an arithmetic number, because the mean of its divisors is an integer number (21268548).

Almost surely, 2157052311 is an apocalyptic number.

157052311 is a deficient number, since it is larger than the sum of its proper divisors (13096073).

157052311 is a wasteful number, since it uses less digits than its factorization.

157052311 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 72521.

The product of its (nonzero) digits is 1050, while the sum is 25.

The square root of 157052311 is about 12532.0513484425. The cubic root of 157052311 is about 539.5289799858.

The spelling of 157052311 in words is "one hundred fifty-seven million, fifty-two thousand, three hundred eleven".

Divisors: 1 13 167 2171 72341 940433 12080947 157052311