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12157033 = 74142359
BaseRepresentation
bin101110011000…
…000001101001
3211212122022111
4232120001221
511103011113
61112322321
7205222150
oct56300151
924778274
1012157033
116953839
1240a33a1
132698615
141886597
15110213d
hexb98069

12157033 has 8 divisors (see below), whose sum is σ = 14232960. Its totient is φ = 10165920.

The previous prime is 12157027. The next prime is 12157037. The reversal of 12157033 is 33075121.

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 12157033 - 25 = 12157001 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 12156995 and 12157013.

It is not an unprimeable number, because it can be changed into a prime (12157037) 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, 20893 + ... + 21466.

It is an arithmetic number, because the mean of its divisors is an integer number (1779120).

Almost surely, 212157033 is an apocalyptic number.

It is an amenable number.

12157033 is a deficient number, since it is larger than the sum of its proper divisors (2075927).

12157033 is an equidigital number, since it uses as much as digits as its factorization.

12157033 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 42407.

The product of its (nonzero) digits is 630, while the sum is 22.

The square root of 12157033 is about 3486.6937060774. The cubic root of 12157033 is about 229.9371788101.

The spelling of 12157033 in words is "twelve million, one hundred fifty-seven thousand, thirty-three".

Divisors: 1 7 41 287 42359 296513 1736719 12157033