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1310077380 = 223521834623
BaseRepresentation
bin100111000010110…
…0011000111000100
310101022010211022110
41032011203013010
510140334434010
6333555301020
744315321403
oct11605430704
93338124273
101310077380
11612560587
123068aa770
1317b555b21
14c5dc563a
157a031120
hex4e1631c4

1310077380 has 24 divisors (see below), whose sum is σ = 3668216832. Its totient is φ = 349353952.

The previous prime is 1310077369. The next prime is 1310077381. The reversal of 1310077380 is 837700131.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is not an unprimeable number, because it can be changed into a prime (1310077381) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 10917252 + ... + 10917371.

It is an arithmetic number, because the mean of its divisors is an integer number (152842368).

Almost surely, 21310077380 is an apocalyptic number.

1310077380 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1310077380 is an abundant number, since it is smaller than the sum of its proper divisors (2358139452).

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

1310077380 is a wasteful number, since it uses less digits than its factorization.

1310077380 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21834635 (or 21834633 counting only the distinct ones).

The product of its (nonzero) digits is 3528, while the sum is 30.

The square root of 1310077380 is about 36194.9910899285. The cubic root of 1310077380 is about 1094.2057249526.

The spelling of 1310077380 in words is "one billion, three hundred ten million, seventy-seven thousand, three hundred eighty".

Divisors: 1 2 3 4 5 6 10 12 15 20 30 60 21834623 43669246 65503869 87338492 109173115 131007738 218346230 262015476 327519345 436692460 655038690 1310077380