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1370431356 = 2237233312143
BaseRepresentation
bin101000110101111…
…0001111101111100
310112111201010101220
41101223301331330
510301312300411
6343553033340
745650321460
oct12153617574
93474633356
101370431356
116436333a8
12322b55850
1318abc7c38
14d00164a0
15804a3b06
hex51af1f7c

1370431356 has 96 divisors (see below), whose sum is σ = 3826679808. Its totient is φ = 373222080.

The previous prime is 1370431331. The next prime is 1370431367. The reversal of 1370431356 is 6531340731.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 638421 + ... + 640563.

It is an arithmetic number, because the mean of its divisors is an integer number (39861248).

Almost surely, 21370431356 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1370431356, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1913339904).

1370431356 is an abundant number, since it is smaller than the sum of its proper divisors (2456248452).

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

1370431356 is a wasteful number, since it uses less digits than its factorization.

1370431356 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2511 (or 2509 counting only the distinct ones).

The product of its (nonzero) digits is 22680, while the sum is 33.

The square root of 1370431356 is about 37019.3375953703. The cubic root of 1370431356 is about 1110.7570940775.

The spelling of 1370431356 in words is "one billion, three hundred seventy million, four hundred thirty-one thousand, three hundred fifty-six".

Divisors: 1 2 3 4 6 7 12 14 21 23 28 42 46 69 84 92 138 161 276 322 331 483 644 662 966 993 1324 1932 1986 2143 2317 3972 4286 4634 6429 6951 7613 8572 9268 12858 13902 15001 15226 22839 25716 27804 30002 30452 45003 45678 49289 53291 60004 90006 91356 98578 106582 147867 159873 180012 197156 213164 295734 319746 345023 591468 639492 690046 709333 1035069 1380092 1418666 2070138 2127999 2837332 4140276 4255998 4965331 8511996 9930662 14895993 16314659 19861324 29791986 32629318 48943977 59583972 65258636 97887954 114202613 195775908 228405226 342607839 456810452 685215678 1370431356