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1376900020 = 22568845001
BaseRepresentation
bin101001000010001…
…1101001110110100
310112221212202202001
41102010131032310
510304441300040
6344343425044
746056312526
oct12204351664
93487782661
101376900020
11647251401
12325155184
1318c351352
14d0c1ba16
1580d3059a
hex5211d3b4

1376900020 has 12 divisors (see below), whose sum is σ = 2891490084. Its totient is φ = 550760000.

The previous prime is 1376900011. The next prime is 1376900027. The reversal of 1376900020 is 200096731.

It can be written as a sum of positive squares in 2 ways, for example, as 635644944 + 741255076 = 25212^2 + 27226^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1376900027) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 34422481 + ... + 34422520.

It is an arithmetic number, because the mean of its divisors is an integer number (240957507).

Almost surely, 21376900020 is an apocalyptic number.

1376900020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1376900020 is an abundant number, since it is smaller than the sum of its proper divisors (1514590064).

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

1376900020 is a wasteful number, since it uses less digits than its factorization.

1376900020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 68845010 (or 68845008 counting only the distinct ones).

The product of its (nonzero) digits is 2268, while the sum is 28.

The square root of 1376900020 is about 37106.6034554498. The cubic root of 1376900020 is about 1112.5020042888.

Adding to 1376900020 its reverse (200096731), we get a palindrome (1576996751).

The spelling of 1376900020 in words is "one billion, three hundred seventy-six million, nine hundred thousand, twenty".

Divisors: 1 2 4 5 10 20 68845001 137690002 275380004 344225005 688450010 1376900020