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1238343164 = 221916293989
BaseRepresentation
bin100100111001111…
…1001110111111100
310012022011100110122
41021303321313330
510014003440124
6322513554112
742454512632
oct11163716774
93168140418
101238343164
11586015603
122a6875938
1316972ab46
14ba671352
1573ab175e
hex49cf9dfc

1238343164 has 12 divisors (see below), whose sum is σ = 2281158600. Its totient is φ = 586583568.

The previous prime is 1238343149. The next prime is 1238343167. The reversal of 1238343164 is 4613438321.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1238343167) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8146919 + ... + 8147070.

It is an arithmetic number, because the mean of its divisors is an integer number (190096550).

Almost surely, 21238343164 is an apocalyptic number.

It is an amenable number.

1238343164 is a deficient number, since it is larger than the sum of its proper divisors (1042815436).

1238343164 is a wasteful number, since it uses less digits than its factorization.

1238343164 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16294012 (or 16294010 counting only the distinct ones).

The product of its digits is 41472, while the sum is 35.

The square root of 1238343164 is about 35190.1003692800. The cubic root of 1238343164 is about 1073.8583630020.

The spelling of 1238343164 in words is "one billion, two hundred thirty-eight million, three hundred forty-three thousand, one hundred sixty-four".

Divisors: 1 2 4 19 38 76 16293989 32587978 65175956 309585791 619171582 1238343164