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470142157 = 17200313807
BaseRepresentation
bin11100000001011…
…100110011001101
31012202122200210111
4130001130303031
51430324022112
6114352440021
714436066562
oct3401346315
91182580714
10470142157
11221423841
12111549011
137652ca34
1446622869
152b41b5a7
hex1c05cccd

470142157 has 8 divisors (see below), whose sum is σ = 498082176. Its totient is φ = 442233792.

The previous prime is 470142133. The next prime is 470142209. The reversal of 470142157 is 751241074.

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 470142157 - 223 = 461753549 is a prime.

It is a super-2 number, since 2×4701421572 = 442067295577225298, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (470149157) 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, 27148 + ... + 40954.

It is an arithmetic number, because the mean of its divisors is an integer number (62260272).

Almost surely, 2470142157 is an apocalyptic number.

It is an amenable number.

470142157 is a deficient number, since it is larger than the sum of its proper divisors (27940019).

470142157 is a wasteful number, since it uses less digits than its factorization.

470142157 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15827.

The product of its (nonzero) digits is 7840, while the sum is 31.

The square root of 470142157 is about 21682.7617475265. The cubic root of 470142157 is about 777.5763896230.

The spelling of 470142157 in words is "four hundred seventy million, one hundred forty-two thousand, one hundred fifty-seven".

Divisors: 1 17 2003 13807 34051 234719 27655421 470142157