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147149506 = 2715766947
BaseRepresentation
bin10001100010101…
…01001011000010
3101020212222011201
420301111023002
5300132241011
622333531414
73434515210
oct1061251302
9336788151
10147149506
1176075669
1241343b6a
132464161a
1415785cb0
15cdb9cc1
hex8c552c2

147149506 has 16 divisors (see below), whose sum is σ = 253866816. Its totient is φ = 62661456.

The previous prime is 147149491. The next prime is 147149537. The reversal of 147149506 is 605941741.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 31276 + ... + 35671.

It is an arithmetic number, because the mean of its divisors is an integer number (15866676).

Almost surely, 2147149506 is an apocalyptic number.

147149506 is a deficient number, since it is larger than the sum of its proper divisors (106717310).

147149506 is a wasteful number, since it uses less digits than its factorization.

147149506 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 67113.

The product of its (nonzero) digits is 30240, while the sum is 37.

The square root of 147149506 is about 12130.5196096457. The cubic root of 147149506 is about 527.9420682729.

The spelling of 147149506 in words is "one hundred forty-seven million, one hundred forty-nine thousand, five hundred six".

Divisors: 1 2 7 14 157 314 1099 2198 66947 133894 468629 937258 10510679 21021358 73574753 147149506