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872230157 = 5483159079
BaseRepresentation
bin110011111111010…
…010110100001101
32020210020212211122
4303333102310031
53241242331112
6222314530325
730420556031
oct6377226415
92223225748
10872230157
11408395477
122041369a5
1310b922826
1483bac1c1
1551893872
hex33fd2d0d

872230157 has 4 divisors (see below), whose sum is σ = 872394720. Its totient is φ = 872065596.

The previous prime is 872230109. The next prime is 872230159. The reversal of 872230157 is 751032278.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 872230157 - 210 = 872229133 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 (872230159) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 74057 + ... + 85022.

It is an arithmetic number, because the mean of its divisors is an integer number (218098680).

Almost surely, 2872230157 is an apocalyptic number.

It is an amenable number.

872230157 is a deficient number, since it is larger than the sum of its proper divisors (164563).

872230157 is a wasteful number, since it uses less digits than its factorization.

872230157 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 164562.

The product of its (nonzero) digits is 23520, while the sum is 35.

The square root of 872230157 is about 29533.5429131014. The cubic root of 872230157 is about 955.4552828564.

The spelling of 872230157 in words is "eight hundred seventy-two million, two hundred thirty thousand, one hundred fifty-seven".

Divisors: 1 5483 159079 872230157