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146872945 = 51719199457
BaseRepresentation
bin10001100000100…
…01101001110001
3101020100220210201
420300101221301
5300044413240
622323555201
73432254002
oct1060215161
9336326721
10146872945
11759a68aa
124122bb01
132457578b
14157131a9
15cd62d9a
hex8c11a71

146872945 has 32 divisors (see below), whose sum is σ = 197856000. Its totient is φ = 104011776.

The previous prime is 146872939. The next prime is 146872949. The reversal of 146872945 is 549278641.

It is not a de Polignac number, because 146872945 - 223 = 138484337 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 146872895 and 146872904.

It is not an unprimeable number, because it can be changed into a prime (146872949) by changing a digit.

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 31 ways as a sum of consecutive naturals, for example, 321157 + ... + 321613.

It is an arithmetic number, because the mean of its divisors is an integer number (6183000).

Almost surely, 2146872945 is an apocalyptic number.

It is an amenable number.

146872945 is a deficient number, since it is larger than the sum of its proper divisors (50983055).

146872945 is a wasteful number, since it uses less digits than its factorization.

146872945 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 697.

The product of its digits is 483840, while the sum is 46.

The square root of 146872945 is about 12119.1148604178. The cubic root of 146872945 is about 527.6111129112.

The spelling of 146872945 in words is "one hundred forty-six million, eight hundred seventy-two thousand, nine hundred forty-five".

Divisors: 1 5 17 19 85 95 199 323 457 995 1615 2285 3383 3781 7769 8683 16915 18905 38845 43415 64277 90943 147611 321385 454715 738055 1546031 1727917 7730155 8639585 29374589 146872945