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145652979 = 3371312189
BaseRepresentation
bin10001010111001…
…11110011110011
3101011001221022210
420223213303303
5244241343404
622241503203
73416013153
oct1053476363
9334057283
10145652979
117524326a
1240941b03
13242393c4
14154b6763
15cbc1689
hex8ae7cf3

145652979 has 8 divisors (see below), whose sum is σ = 199452880. Its totient is φ = 94477536.

The previous prime is 145652977. The next prime is 145652981. The reversal of 145652979 is 979256541.

It is an interprime number because it is at equal distance from previous prime (145652977) and next prime (145652981).

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 145652979 - 21 = 145652977 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (145652977) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 655984 + ... + 656205.

It is an arithmetic number, because the mean of its divisors is an integer number (24931610).

Almost surely, 2145652979 is an apocalyptic number.

145652979 is a deficient number, since it is larger than the sum of its proper divisors (53799901).

145652979 is a wasteful number, since it uses less digits than its factorization.

145652979 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1312229.

The product of its digits is 680400, while the sum is 48.

The square root of 145652979 is about 12068.6775994721. The cubic root of 145652979 is about 526.1462230881.

The spelling of 145652979 in words is "one hundred forty-five million, six hundred fifty-two thousand, nine hundred seventy-nine".

Divisors: 1 3 37 111 1312189 3936567 48550993 145652979