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47013157 is a prime number
BaseRepresentation
bin1011001101010…
…1110100100101
310021110111221001
42303111310211
544013410112
64355353301
71110414412
oct263256445
9107414831
1047013157
11245a0754
12138b2831
139980a49
14635b109
1541d9c57
hex2cd5d25

47013157 has 2 divisors, whose sum is σ = 47013158. Its totient is φ = 47013156.

The previous prime is 47013151. The next prime is 47013181. The reversal of 47013157 is 75131074.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 43678881 + 3334276 = 6609^2 + 1826^2 .

It is a cyclic number.

It is not a de Polignac number, because 47013157 - 211 = 47011109 is a prime.

It is a super-2 number, since 2×470131572 = 4420473862213298, which contains 22 as substring.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (47013151) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 23506578 + 23506579.

It is an arithmetic number, because the mean of its divisors is an integer number (23506579).

Almost surely, 247013157 is an apocalyptic number.

It is an amenable number.

47013157 is a deficient number, since it is larger than the sum of its proper divisors (1).

47013157 is an equidigital number, since it uses as much as digits as its factorization.

47013157 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2940, while the sum is 28.

The square root of 47013157 is about 6856.6141061022. The cubic root of 47013157 is about 360.9162795705.

The spelling of 47013157 in words is "forty-seven million, thirteen thousand, one hundred fifty-seven".