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1372042400 = 255210316651
BaseRepresentation
bin101000111000111…
…1011010010100000
310112121201222100012
41101301323102200
510302220324100
6344051344052
746000111421
oct12161732240
93477658305
101372042400
11644533843
123235b2028
1318b340311
14d0315648
15806c1135
hex51c7b4a0

1372042400 has 72 divisors (see below), whose sum is σ = 3382221024. Its totient is φ = 543456000.

The previous prime is 1372042393. The next prime is 1372042447. The reversal of 1372042400 is 42402731.

It is a super-3 number, since 3×13720424003 (a number of 28 digits) contains 333 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 74075 + ... + 90725.

It is an arithmetic number, because the mean of its divisors is an integer number (46975292).

Almost surely, 21372042400 is an apocalyptic number.

1372042400 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1372042400, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1691110512).

1372042400 is an abundant number, since it is smaller than the sum of its proper divisors (2010178624).

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

1372042400 is a wasteful number, since it uses less digits than its factorization.

1372042400 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16774 (or 16761 counting only the distinct ones).

The product of its (nonzero) digits is 1344, while the sum is 23.

The square root of 1372042400 is about 37041.0906966844. The cubic root of 1372042400 is about 1111.1921828252.

The spelling of 1372042400 in words is "one billion, three hundred seventy-two million, forty-two thousand, four hundred".

Divisors: 1 2 4 5 8 10 16 20 25 32 40 50 80 100 103 160 200 206 400 412 515 800 824 1030 1648 2060 2575 3296 4120 5150 8240 10300 16480 16651 20600 33302 41200 66604 82400 83255 133208 166510 266416 333020 416275 532832 666040 832550 1332080 1665100 1715053 2664160 3330200 3430106 6660400 6860212 8575265 13320800 13720424 17150530 27440848 34301060 42876325 54881696 68602120 85752650 137204240 171505300 274408480 343010600 686021200 1372042400