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1377939708 = 223331974243
BaseRepresentation
bin101001000100001…
…1011000011111100
310120000211120221000
41102020123003330
510310223032313
6344422010300
746101202635
oct12210330374
93500746830
101377939708
116478a1552
12325576990
1318c626652
14d100c88c
1580e88673
hex5221b0fc

1377939708 has 96 divisors (see below), whose sum is σ = 3726571520. Its totient is φ = 439810560.

The previous prime is 1377939707. The next prime is 1377939791. The reversal of 1377939708 is 8079397731.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1377939701) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 322635 + ... + 326877.

Almost surely, 21377939708 is an apocalyptic number.

1377939708 is a gapful number since it is divisible by the number (18) 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 1377939708, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1863285760).

1377939708 is an abundant number, since it is smaller than the sum of its proper divisors (2348631812).

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

1377939708 is a wasteful number, since it uses less digits than its factorization.

1377939708 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4384 (or 4376 counting only the distinct ones).

The product of its (nonzero) digits is 2000376, while the sum is 54.

The square root of 1377939708 is about 37120.6102859315. The cubic root of 1377939708 is about 1112.7819481147.

The spelling of 1377939708 in words is "one billion, three hundred seventy-seven million, nine hundred thirty-nine thousand, seven hundred eight".

Divisors: 1 2 3 4 6 9 12 18 27 31 36 54 62 93 97 108 124 186 194 279 291 372 388 558 582 837 873 1116 1164 1674 1746 2619 3007 3348 3492 4243 5238 6014 8486 9021 10476 12028 12729 16972 18042 25458 27063 36084 38187 50916 54126 76374 81189 108252 114561 131533 152748 162378 229122 263066 324756 394599 411571 458244 526132 789198 823142 1183797 1234713 1578396 1646284 2367594 2469426 3551391 3704139 4735188 4938852 7102782 7408278 11112417 12758701 14205564 14816556 22224834 25517402 38276103 44449668 51034804 76552206 114828309 153104412 229656618 344484927 459313236 688969854 1377939708