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147122091 = 32127912781
BaseRepresentation
bin10001100010011…
…10011110101011
3101020211120120100
420301032132223
5300130401331
622333200443
73434342244
oct1061163653
9336746510
10147122091
1176057006
1241330123
1324631cbc
1415779ccb
15cdb1ae6
hex8c4e7ab

147122091 has 12 divisors (see below), whose sum is σ = 212692480. Its totient is φ = 97997040.

The previous prime is 147122089. The next prime is 147122113. The reversal of 147122091 is 190221741.

It is not a de Polignac number, because 147122091 - 21 = 147122089 is a prime.

It is a super-3 number, since 3×1471220913 (a number of 25 digits) contains 333 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (147122021) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 5121 + ... + 17901.

Almost surely, 2147122091 is an apocalyptic number.

147122091 is a deficient number, since it is larger than the sum of its proper divisors (65570389).

147122091 is a wasteful number, since it uses less digits than its factorization.

147122091 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14066 (or 14063 counting only the distinct ones).

The product of its (nonzero) digits is 1008, while the sum is 27.

The square root of 147122091 is about 12129.3895559505. The cubic root of 147122091 is about 527.9092797819.

The spelling of 147122091 in words is "one hundred forty-seven million, one hundred twenty-two thousand, ninety-one".

Divisors: 1 3 9 1279 3837 11511 12781 38343 115029 16346899 49040697 147122091