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29513972 = 2217434029
BaseRepresentation
bin111000010010…
…1100011110100
32001112110120002
41300211203310
530023421342
62532330432
7505602365
oct160454364
961473502
1029513972
1115729314
129a73a18
1361649b7
143cc3b6c
1528ced32
hex1c258f4

29513972 has 12 divisors (see below), whose sum is σ = 54687780. Its totient is φ = 13888896.

The previous prime is 29513971. The next prime is 29513993. The reversal of 29513972 is 27931592.

It can be written as a sum of positive squares in 2 ways, for example, as 11587216 + 17926756 = 3404^2 + 4234^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (29513971) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 216947 + ... + 217082.

It is an arithmetic number, because the mean of its divisors is an integer number (4557315).

Almost surely, 229513972 is an apocalyptic number.

It is an amenable number.

29513972 is a deficient number, since it is larger than the sum of its proper divisors (25173808).

29513972 is a wasteful number, since it uses less digits than its factorization.

29513972 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 434050 (or 434048 counting only the distinct ones).

The product of its digits is 34020, while the sum is 38.

The square root of 29513972 is about 5432.6763201943. The cubic root of 29513972 is about 309.0361041869.

The spelling of 29513972 in words is "twenty-nine million, five hundred thirteen thousand, nine hundred seventy-two".

Divisors: 1 2 4 17 34 68 434029 868058 1736116 7378493 14756986 29513972