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1369140980 = 225671021747
BaseRepresentation
bin101000110011011…
…0110111011110100
310112102021120100012
41101212312323310
510301000002410
6343505235352
745633335444
oct12146667364
93472246305
101369140980
11642931979
12322632b58
1318a8657bc
14cdb9c124
15802eb605
hex519b6ef4

1369140980 has 24 divisors (see below), whose sum is σ = 2918112288. Its totient is φ = 539481888.

The previous prime is 1369140979. The next prime is 1369141001. The reversal of 1369140980 is 890419631.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 509534 + ... + 512213.

It is an arithmetic number, because the mean of its divisors is an integer number (121588012).

Almost surely, 21369140980 is an apocalyptic number.

1369140980 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1369140980 is an abundant number, since it is smaller than the sum of its proper divisors (1548971308).

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

1369140980 is a wasteful number, since it uses less digits than its factorization.

1369140980 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1021823 (or 1021821 counting only the distinct ones).

The product of its (nonzero) digits is 46656, while the sum is 41.

The square root of 1369140980 is about 37001.9050860898. The cubic root of 1369140980 is about 1110.4083609625.

The spelling of 1369140980 in words is "one billion, three hundred sixty-nine million, one hundred forty thousand, nine hundred eighty".

Divisors: 1 2 4 5 10 20 67 134 268 335 670 1340 1021747 2043494 4086988 5108735 10217470 20434940 68457049 136914098 273828196 342285245 684570490 1369140980