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29520987 = 310197429
BaseRepresentation
bin111000010011…
…1010001011011
32001112211011220
41300213101123
530024132422
62532423123
7505632006
oct160472133
961484156
1029520987
1115733611
129a77aa3
136167c52
143cc653d
1528d1e5c
hex1c2745b

29520987 has 8 divisors (see below), whose sum is σ = 39751440. Its totient is φ = 19485600.

The previous prime is 29520973. The next prime is 29520989. The reversal of 29520987 is 78902592.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 29520987 - 24 = 29520971 is a prime.

It is not an unprimeable number, because it can be changed into a prime (29520989) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 48412 + ... + 49017.

It is an arithmetic number, because the mean of its divisors is an integer number (4968930).

Almost surely, 229520987 is an apocalyptic number.

29520987 is a deficient number, since it is larger than the sum of its proper divisors (10230453).

29520987 is a wasteful number, since it uses less digits than its factorization.

29520987 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 97533.

The product of its (nonzero) digits is 90720, while the sum is 42.

The square root of 29520987 is about 5433.3219120534. The cubic root of 29520987 is about 309.0605865635.

It can be divided in two parts, 295209 and 87, that added together give a triangular number (295296 = T768).

The spelling of 29520987 in words is "twenty-nine million, five hundred twenty thousand, nine hundred eighty-seven".

Divisors: 1 3 101 303 97429 292287 9840329 29520987