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1376123420 = 225771167829
BaseRepresentation
bin101001000000101…
…1111101000011100
310112220102022110002
41102001133220130
510304241422140
6344315033432
746046566430
oct12201375034
93486368402
101376123420
11646870991
12324a3b878
1318c13ba19
14d0a989c0
1580c2a415
hex5205fa1c

1376123420 has 96 divisors (see below), whose sum is σ = 3373332480. Its totient is φ = 461825280.

The previous prime is 1376123401. The next prime is 1376123443. The reversal of 1376123420 is 243216731.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1659566 + ... + 1660394.

It is an arithmetic number, because the mean of its divisors is an integer number (35138880).

Almost surely, 21376123420 is an apocalyptic number.

1376123420 is a gapful number since it is divisible by the number (10) 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 1376123420, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1686666240).

1376123420 is an abundant number, since it is smaller than the sum of its proper divisors (1997209060).

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

1376123420 is a wasteful number, since it uses less digits than its factorization.

1376123420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1083 (or 1081 counting only the distinct ones).

The product of its (nonzero) digits is 6048, while the sum is 29.

The square root of 1376123420 is about 37096.1375347893. The cubic root of 1376123420 is about 1112.2928069307.

The spelling of 1376123420 in words is "one billion, three hundred seventy-six million, one hundred twenty-three thousand, four hundred twenty".

Divisors: 1 2 4 5 7 10 14 20 28 35 70 71 140 142 167 284 334 355 497 668 710 829 835 994 1169 1420 1658 1670 1988 2338 2485 3316 3340 4145 4676 4970 5803 5845 8290 9940 11606 11690 11857 16580 23212 23380 23714 29015 47428 58030 58859 59285 82999 116060 117718 118570 138443 165998 235436 237140 276886 294295 331996 412013 414995 553772 588590 692215 824026 829990 969101 1177180 1384430 1648052 1659980 1938202 2060065 2768860 3876404 4120130 4845505 8240260 9691010 9829453 19382020 19658906 39317812 49147265 68806171 98294530 137612342 196589060 275224684 344030855 688061710 1376123420