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1238463372 = 223101592
BaseRepresentation
bin100100111010001…
…0111001110001100
310012022101110100210
41021310113032030
510014021311442
6322520322420
742455523246
oct11164271614
93168343323
101238463372
11586097953
122a6913410
13169770783
14ba6a3096
1573ad719c
hex49d1738c

1238463372 has 18 divisors (see below), whose sum is σ = 2890032348. Its totient is φ = 412780488.

The previous prime is 1238463353. The next prime is 1238463409. The reversal of 1238463372 is 2733648321.

It is a super-2 number, since 2×12384633722 = 3067583047571220768, which contains 22 as substring.

It is a Smith number, since the sum of its digits (39) coincides with the sum of the digits of its prime factors.

It is a self number, because there is not a number n which added to its sum of digits gives 1238463372.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 116829 + ... + 126987.

Almost surely, 21238463372 is an apocalyptic number.

1238463372 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1238463372 is an abundant number, since it is smaller than the sum of its proper divisors (1651568976).

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

1238463372 is an frugal number, since it uses more digits than its factorization.

1238463372 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20325 (or 10164 counting only the distinct ones).

The product of its digits is 145152, while the sum is 39.

The square root of 1238463372 is about 35191.8083081844. The cubic root of 1238463372 is about 1073.8931089413.

The spelling of 1238463372 in words is "one billion, two hundred thirty-eight million, four hundred sixty-three thousand, three hundred seventy-two".

Divisors: 1 2 3 4 6 12 10159 20318 30477 40636 60954 121908 103205281 206410562 309615843 412821124 619231686 1238463372