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29795940 = 22325165533
BaseRepresentation
bin111000110101…
…0011001100100
32002001210100100
41301222121210
530111432230
62542344100
7511155426
oct161523144
962053310
1029795940
1115901149
129b8b030
136233145
143d58816
152938660
hex1c6a664

29795940 has 36 divisors (see below), whose sum is σ = 90381564. Its totient is φ = 7945536.

The previous prime is 29795939. The next prime is 29795957. The reversal of 29795940 is 4959792.

It can be written as a sum of positive squares in 2 ways, for example, as 3663396 + 26132544 = 1914^2 + 5112^2 .

It is a tau number, because it is divible by the number of its divisors (36).

It is a Harshad number since it is a multiple of its sum of digits (45).

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 82587 + ... + 82946.

It is an arithmetic number, because the mean of its divisors is an integer number (2510599).

Almost surely, 229795940 is an apocalyptic number.

29795940 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

29795940 is an abundant number, since it is smaller than the sum of its proper divisors (60585624).

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

29795940 is a wasteful number, since it uses less digits than its factorization.

29795940 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 165548 (or 165543 counting only the distinct ones).

The product of its (nonzero) digits is 204120, while the sum is 45.

The square root of 29795940 is about 5458.5657456881. The cubic root of 29795940 is about 310.0171339819.

The spelling of 29795940 in words is "twenty-nine million, seven hundred ninety-five thousand, nine hundred forty".

Divisors: 1 2 3 4 5 6 9 10 12 15 18 20 30 36 45 60 90 180 165533 331066 496599 662132 827665 993198 1489797 1655330 1986396 2482995 2979594 3310660 4965990 5959188 7448985 9931980 14897970 29795940