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380019979836 = 223374112260291
BaseRepresentation
bin1011000011110101111…
…01001011011000111100
31100022220020122011221000
411201322331023120330
522211240103323321
6450325003010300
736312151350240
oct5417275133074
91308806564830
10380019979836
1113719040a542
1261797b09990
1329ab313a8c3
14145707dc420
159d427c7826
hex587af4b63c

380019979836 has 96 divisors (see below), whose sum is σ = 1153448271360. Its totient is φ = 105928905600.

The previous prime is 380019979831. The next prime is 380019979841. The reversal of 380019979836 is 638979910083.

It is an interprime number because it is at equal distance from previous prime (380019979831) and next prime (380019979841).

It is a Harshad number since it is a multiple of its sum of digits (63).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (380019979831) 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, 6099150 + ... + 6161141.

It is an arithmetic number, because the mean of its divisors is an integer number (12015086160).

Almost surely, 2380019979836 is an apocalyptic number.

380019979836 is a gapful number since it is divisible by the number (36) formed by its first and last digit.

It is an amenable number.

380019979836 is an abundant number, since it is smaller than the sum of its proper divisors (773428291524).

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

380019979836 is a wasteful number, since it uses less digits than its factorization.

380019979836 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12260352 (or 12260344 counting only the distinct ones).

The product of its (nonzero) digits is 17635968, while the sum is 63.

The spelling of 380019979836 in words is "three hundred eighty billion, nineteen million, nine hundred seventy-nine thousand, eight hundred thirty-six".

Divisors: 1 2 3 4 6 7 9 12 14 18 21 27 28 36 41 42 54 63 82 84 108 123 126 164 189 246 252 287 369 378 492 574 738 756 861 1107 1148 1476 1722 2214 2583 3444 4428 5166 7749 10332 15498 30996 12260291 24520582 36780873 49041164 73561746 85822037 110342619 147123492 171644074 220685238 257466111 331027857 343288148 441370476 502671931 514932222 662055714 772398333 1005343862 1029864444 1324111428 1508015793 1544796666 2010687724 2317194999 3016031586 3089593332 3518703517 4524047379 4634389998 6032063172 7037407034 9048094758 9268779996 10556110551 13572142137 14074814068 18096189516 21112221102 27144284274 31668331653 42224442204 54288568548 63336663306 95004994959 126673326612 190009989918 380019979836