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40268042680 = 23511314959791
BaseRepresentation
bin100101100000001010…
…011001000110111000
310211221100102111221011
4211200022121012320
51124432104331210
630255431523304
72623610500225
oct454012310670
9124840374834
1040268042680
1116094295518
127979829534
133a497714b8
141d4002294c
1510aa2d1d8a
hex9602991b8

40268042680 has 64 divisors (see below), whose sum is σ = 92019888000. Its totient is φ = 15857264640.

The previous prime is 40268042669. The next prime is 40268042743. The reversal of 40268042680 is 8624086204.

It is a super-2 number, since 2×402680426802 (a number of 22 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (40).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 643585 + ... + 703375.

It is an arithmetic number, because the mean of its divisors is an integer number (1437810750).

Almost surely, 240268042680 is an apocalyptic number.

40268042680 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

40268042680 is an abundant number, since it is smaller than the sum of its proper divisors (51751845320).

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

40268042680 is a wasteful number, since it uses less digits than its factorization.

40268042680 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 60064 (or 60060 counting only the distinct ones).

The product of its (nonzero) digits is 147456, while the sum is 40.

The spelling of 40268042680 in words is "forty billion, two hundred sixty-eight million, forty-two thousand, six hundred eighty".

Divisors: 1 2 4 5 8 10 20 40 113 149 226 298 452 565 596 745 904 1130 1192 1490 2260 2980 4520 5960 16837 33674 59791 67348 84185 119582 134696 168370 239164 298955 336740 478328 597910 673480 1195820 2391640 6756383 8908859 13512766 17817718 27025532 33781915 35635436 44544295 54051064 67563830 71270872 89088590 135127660 178177180 270255320 356354360 1006701067 2013402134 4026804268 5033505335 8053608536 10067010670 20134021340 40268042680