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1238608434 = 23739897393
BaseRepresentation
bin100100111010011…
…1010101000110010
310012022122211100110
41021310322220302
510014040432214
6322523402150
742456666210
oct11164725062
93168584313
101238608434
11586186938
122a6983356
131697c17cb
14ba6ddcb0
1573b15159
hex49d3aa32

1238608434 has 32 divisors (see below), whose sum is σ = 2832197760. Its totient is φ = 353751552.

The previous prime is 1238608429. The next prime is 1238608453. The reversal of 1238608434 is 4348068321.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 1238608392 and 1238608401.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 163842 + ... + 171234.

It is an arithmetic number, because the mean of its divisors is an integer number (88506180).

Almost surely, 21238608434 is an apocalyptic number.

1238608434 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

1238608434 is an abundant number, since it is smaller than the sum of its proper divisors (1593589326).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1238608434 is a wasteful number, since it uses less digits than its factorization.

1238608434 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11394.

The product of its (nonzero) digits is 110592, while the sum is 39.

The square root of 1238608434 is about 35193.8692672460. The cubic root of 1238608434 is about 1073.9350358980.

The spelling of 1238608434 in words is "one billion, two hundred thirty-eight million, six hundred eight thousand, four hundred thirty-four".

Divisors: 1 2 3 6 7 14 21 42 3989 7393 7978 11967 14786 22179 23934 27923 44358 51751 55846 83769 103502 155253 167538 310506 29490677 58981354 88472031 176944062 206434739 412869478 619304217 1238608434