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40889030 = 257413131
BaseRepresentation
bin1001101111111…
…0101011000110
32211221101012112
42123332223012
540431422110
64020221022
71004360000
oct233765306
984841175
1040889030
1121098596
121183a772
1386183c0
145605370
1538ca405
hex26feac6

40889030 has 80 divisors (see below), whose sum is σ = 93172464. Its totient is φ = 12841920.

The previous prime is 40889021. The next prime is 40889041. The reversal of 40889030 is 3098804.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 312065 + ... + 312195.

Almost surely, 240889030 is an apocalyptic number.

40889030 is an abundant number, since it is smaller than the sum of its proper divisors (52283434).

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

40889030 is a wasteful number, since it uses less digits than its factorization.

40889030 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 179 (or 158 counting only the distinct ones).

The product of its (nonzero) digits is 6912, while the sum is 32.

The square root of 40889030 is about 6394.4530649619. The cubic root of 40889030 is about 344.5103464684.

The spelling of 40889030 in words is "forty million, eight hundred eighty-nine thousand, thirty".

Divisors: 1 2 5 7 10 13 14 26 35 49 65 70 91 98 130 131 182 245 262 343 455 490 637 655 686 910 917 1274 1310 1703 1715 1834 2401 3185 3406 3430 4459 4585 4802 6370 6419 8515 8918 9170 11921 12005 12838 17030 22295 23842 24010 31213 32095 44590 44933 59605 62426 64190 83447 89866 119210 156065 166894 224665 312130 314531 417235 449330 584129 629062 834470 1168258 1572655 2920645 3145310 4088903 5841290 8177806 20444515 40889030