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190331144 = 23237710009
BaseRepresentation
bin10110101100000…
…11100100001000
3111021010211020122
423112003210020
5342211044034
630515242412
74500534203
oct1326034410
9437124218
10190331144
1198489673
12538a9408
13305803a3
141b3c693a
1511a9962e
hexb583908

190331144 has 16 divisors (see below), whose sum is σ = 357056700. Its totient is φ = 95116032.

The previous prime is 190331137. The next prime is 190331161. The reversal of 190331144 is 441133091.

It can be written as a sum of positive squares in 2 ways, for example, as 172607044 + 17724100 = 13138^2 + 4210^2 .

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 3 ways as a sum of consecutive naturals, for example, 14012 + ... + 24020.

Almost surely, 2190331144 is an apocalyptic number.

It is an amenable number.

190331144 is a deficient number, since it is larger than the sum of its proper divisors (166725556).

190331144 is a wasteful number, since it uses less digits than its factorization.

190331144 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12392 (or 12388 counting only the distinct ones).

The product of its (nonzero) digits is 1296, while the sum is 26.

The square root of 190331144 is about 13796.0553782594. The cubic root of 190331144 is about 575.2234987495.

The spelling of 190331144 in words is "one hundred ninety million, three hundred thirty-one thousand, one hundred forty-four".

Divisors: 1 2 4 8 2377 4754 9508 10009 19016 20018 40036 80072 23791393 47582786 95165572 190331144