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1315307620 = 225116198011
BaseRepresentation
bin100111001100110…
…0000000001100100
310101122222112212001
41032121200001210
510143204320440
6334303335044
744410634044
oct11631400144
93348875761
101315307620
116155030a0
123085b1484
1317c667643
14c6987724
157a715b9a
hex4e660064

1315307620 has 48 divisors (see below), whose sum is σ = 3062678976. Its totient is φ = 470448000.

The previous prime is 1315307579. The next prime is 1315307627. The reversal of 1315307620 is 267035131.

It is not an unprimeable number, because it can be changed into a prime (1315307627) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 35586 + ... + 62425.

It is an arithmetic number, because the mean of its divisors is an integer number (63805812).

Almost surely, 21315307620 is an apocalyptic number.

1315307620 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1315307620 is an abundant number, since it is smaller than the sum of its proper divisors (1747371356).

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

1315307620 is a wasteful number, since it uses less digits than its factorization.

1315307620 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 98092 (or 98090 counting only the distinct ones).

The product of its (nonzero) digits is 3780, while the sum is 28.

The square root of 1315307620 is about 36267.1700026346. The cubic root of 1315307620 is about 1095.6599289908.

The spelling of 1315307620 in words is "one billion, three hundred fifteen million, three hundred seven thousand, six hundred twenty".

Divisors: 1 2 4 5 10 11 20 22 44 55 61 110 122 220 244 305 610 671 1220 1342 2684 3355 6710 13420 98011 196022 392044 490055 980110 1078121 1960220 2156242 4312484 5390605 5978671 10781210 11957342 21562420 23914684 29893355 59786710 65765381 119573420 131530762 263061524 328826905 657653810 1315307620