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45129405 = 3513032309
BaseRepresentation
bin1010110000100…
…1111010111101
310010220210220110
42230021322331
543023120110
64251140233
71055410416
oct254117275
9103823813
1045129405
1123524432
1213144679
1394714b9
145dca80d
153e66a20
hex2b09ebd

45129405 has 16 divisors (see below), whose sum is σ = 72293760. Its totient is φ = 24040128.

The previous prime is 45129377. The next prime is 45129421. The reversal of 45129405 is 50492154.

It is not a de Polignac number, because 45129405 - 29 = 45128893 is a prime.

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 15 ways as a sum of consecutive naturals, for example, 18391 + ... + 20699.

It is an arithmetic number, because the mean of its divisors is an integer number (4518360).

Almost surely, 245129405 is an apocalyptic number.

It is an amenable number.

45129405 is a deficient number, since it is larger than the sum of its proper divisors (27164355).

45129405 is a wasteful number, since it uses less digits than its factorization.

45129405 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3620.

The product of its (nonzero) digits is 7200, while the sum is 30.

The square root of 45129405 is about 6717.8422875206. The cubic root of 45129405 is about 356.0299521363.

The spelling of 45129405 in words is "forty-five million, one hundred twenty-nine thousand, four hundred five".

Divisors: 1 3 5 15 1303 2309 3909 6515 6927 11545 19545 34635 3008627 9025881 15043135 45129405