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144657692 = 22172127319
BaseRepresentation
bin10001001111101…
…00110100011100
3101002012101001022
420213310310130
5244013021232
622204303312
73404366354
oct1047646434
9332171038
10144657692
1174723513
1240541b38
1323c7b38a
14152d7b64
15ca76812
hex89f4d1c

144657692 has 12 divisors (see below), whose sum is σ = 268042320. Its totient is φ = 68074176.

The previous prime is 144657673. The next prime is 144657701. The reversal of 144657692 is 296756441.

144657692 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1063592 + ... + 1063727.

It is an arithmetic number, because the mean of its divisors is an integer number (22336860).

Almost surely, 2144657692 is an apocalyptic number.

It is an amenable number.

144657692 is a deficient number, since it is larger than the sum of its proper divisors (123384628).

144657692 is a wasteful number, since it uses less digits than its factorization.

144657692 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2127340 (or 2127338 counting only the distinct ones).

The product of its digits is 362880, while the sum is 44.

The square root of 144657692 is about 12027.3726141664. The cubic root of 144657692 is about 524.9450488215.

The spelling of 144657692 in words is "one hundred forty-four million, six hundred fifty-seven thousand, six hundred ninety-two".

Divisors: 1 2 4 17 34 68 2127319 4254638 8509276 36164423 72328846 144657692