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147031886 = 2473894021
BaseRepresentation
bin10001100001110…
…00011101001110
3101020122222211102
420300320131032
5300120010021
622331223102
73433515251
oct1060703516
9336588742
10147031886
1175aa5261
12412a7a92
13245ccc21
1415755098
15cd9500b
hex8c3874e

147031886 has 16 divisors (see below), whose sum is σ = 225875520. Its totient is φ = 71748960.

The previous prime is 147031883. The next prime is 147031889. The reversal of 147031886 is 688130741.

It is an interprime number because it is at equal distance from previous prime (147031883) and next prime (147031889).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (147031883) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 34556 + ... + 38576.

It is an arithmetic number, because the mean of its divisors is an integer number (14117220).

Almost surely, 2147031886 is an apocalyptic number.

147031886 is a deficient number, since it is larger than the sum of its proper divisors (78843634).

147031886 is a wasteful number, since it uses less digits than its factorization.

147031886 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4459.

The product of its (nonzero) digits is 32256, while the sum is 38.

The square root of 147031886 is about 12125.6705381599. The cubic root of 147031886 is about 527.8013653461.

The spelling of 147031886 in words is "one hundred forty-seven million, thirty-one thousand, eight hundred eighty-six".

Divisors: 1 2 47 94 389 778 4021 8042 18283 36566 188987 377974 1564169 3128338 73515943 147031886