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2159157 = 371113719
BaseRepresentation
bin1000001111001000110101
311001200210210
420033020311
51023043112
6114140033
724231630
oct10171065
94050723
102159157
111245230
12881619
135a7a10
14402c17
152c9b3c
hex20f235

2159157 has 32 divisors (see below), whose sum is σ = 3870720. Its totient is φ = 1033920.

The previous prime is 2159147. The next prime is 2159177. The reversal of 2159157 is 7519512.

It is not a de Polignac number, because 2159157 - 26 = 2159093 is a prime.

2159157 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2159147) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2644 + ... + 3362.

It is an arithmetic number, because the mean of its divisors is an integer number (120960).

22159157 is an apocalyptic number.

It is an amenable number.

2159157 is a deficient number, since it is larger than the sum of its proper divisors (1711563).

2159157 is a wasteful number, since it uses less digits than its factorization.

2159157 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 753.

The product of its digits is 3150, while the sum is 30.

The square root of 2159157 is about 1469.4070232580. The cubic root of 2159157 is about 129.2492626541.

The spelling of 2159157 in words is "two million, one hundred fifty-nine thousand, one hundred fifty-seven".

Divisors: 1 3 7 11 13 21 33 39 77 91 143 231 273 429 719 1001 2157 3003 5033 7909 9347 15099 23727 28041 55363 65429 102817 166089 196287 308451 719719 2159157