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29130975 = 3352103419
BaseRepresentation
bin110111100100…
…0000011011111
32000211000012000
41233020003133
524424142400
62520213343
7502415646
oct157100337
960730160
1029130975
1115497595
12990a253
13605c583
143c2435d
152856600
hex1bc80df

29130975 has 48 divisors (see below), whose sum is σ = 54163200. Its totient is φ = 15348960.

The previous prime is 29130961. The next prime is 29131001. The reversal of 29130975 is 57903192.

It is not a de Polignac number, because 29130975 - 27 = 29130847 is a prime.

It is a super-2 number, since 2×291309752 = 1697227408901250, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 69316 + ... + 69734.

It is an arithmetic number, because the mean of its divisors is an integer number (1128400).

Almost surely, 229130975 is an apocalyptic number.

29130975 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

29130975 is a deficient number, since it is larger than the sum of its proper divisors (25032225).

29130975 is a wasteful number, since it uses less digits than its factorization.

29130975 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 541 (or 530 counting only the distinct ones).

The product of its (nonzero) digits is 17010, while the sum is 36.

The square root of 29130975 is about 5397.3118309025. The cubic root of 29130975 is about 307.6935129360.

The spelling of 29130975 in words is "twenty-nine million, one hundred thirty thousand, nine hundred seventy-five".

Divisors: 1 3 5 9 15 25 27 45 75 103 135 225 309 419 515 675 927 1257 1545 2095 2575 2781 3771 4635 6285 7725 10475 11313 13905 18855 23175 31425 43157 56565 69525 94275 129471 215785 282825 388413 647355 1078925 1165239 1942065 3236775 5826195 9710325 29130975