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12157067 = 1347101197
BaseRepresentation
bin101110011000…
…000010001011
3211212122100202
4232120002023
511103011232
61112322415
7205222226
oct56300213
924778322
1012157067
11695386a
1240a340b
132698640
1418865bd
151102162
hexb9808b

12157067 has 16 divisors (see below), whose sum is σ = 13571712. Its totient is φ = 10819200.

The previous prime is 12157063. The next prime is 12157069. The reversal of 12157067 is 76075121.

It is a cyclic number.

It is not a de Polignac number, because 12157067 - 22 = 12157063 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12157063) 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, 61613 + ... + 61809.

It is an arithmetic number, because the mean of its divisors is an integer number (848232).

Almost surely, 212157067 is an apocalyptic number.

12157067 is a deficient number, since it is larger than the sum of its proper divisors (1414645).

12157067 is a wasteful number, since it uses less digits than its factorization.

12157067 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 358.

The product of its (nonzero) digits is 2940, while the sum is 29.

The square root of 12157067 is about 3486.6985817532. The cubic root of 12157067 is about 229.9373931677.

The spelling of 12157067 in words is "twelve million, one hundred fifty-seven thousand, sixty-seven".

Divisors: 1 13 47 101 197 611 1313 2561 4747 9259 19897 61711 120367 258661 935159 12157067