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1380300656 = 24723223297
BaseRepresentation
bin101001001000101…
…1011011101110000
310120012021112112112
41102101123131300
510311324110111
6344544344452
746130235110
oct12221333560
93505245475
101380300656
11649164349
12326315128
1318cc72167
14d1465040
15812a2e8b
hex5245b770

1380300656 has 60 divisors (see below), whose sum is σ = 3195180912. Its totient is φ = 565813248.

The previous prime is 1380300613. The next prime is 1380300659. The reversal of 1380300656 is 6560030831.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1380300659) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 47600 + ... + 70896.

Almost surely, 21380300656 is an apocalyptic number.

1380300656 is a gapful number since it is divisible by the number (16) 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 1380300656, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1597590456).

1380300656 is an abundant number, since it is smaller than the sum of its proper divisors (1814880256).

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

1380300656 is a wasteful number, since it uses less digits than its factorization.

1380300656 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23358 (or 23329 counting only the distinct ones).

The product of its (nonzero) digits is 12960, while the sum is 32.

The square root of 1380300656 is about 37152.3977153561. The cubic root of 1380300656 is about 1113.4171286048.

The spelling of 1380300656 in words is "one billion, three hundred eighty million, three hundred thousand, six hundred fifty-six".

Divisors: 1 2 4 7 8 14 16 23 28 46 56 92 112 161 184 322 368 529 644 1058 1288 2116 2576 3703 4232 7406 8464 14812 23297 29624 46594 59248 93188 163079 186376 326158 372752 535831 652316 1071662 1304632 2143324 2609264 3750817 4286648 7501634 8573296 12324113 15003268 24648226 30006536 49296452 60013072 86268791 98592904 172537582 197185808 345075164 690150328 1380300656