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29900008 = 23171092017
BaseRepresentation
bin111001000001…
…1110011101000
32002021002002201
41302003303220
530123300013
62544505544
7512101015
oct162036350
962232081
1029900008
1115972356
12a01b2b4
13626b618
143d8470c
1529593dd
hex1c83ce8

29900008 has 32 divisors (see below), whose sum is σ = 59934600. Its totient is φ = 13934592.

The previous prime is 29899993. The next prime is 29900009. The reversal of 29900008 is 80000992.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 29833444 + 66564 = 5462^2 + 258^2 .

It is not an unprimeable number, because it can be changed into a prime (29900009) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 13816 + ... + 15832.

Almost surely, 229900008 is an apocalyptic number.

It is an amenable number.

29900008 is an abundant number, since it is smaller than the sum of its proper divisors (30034592).

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

29900008 is a wasteful number, since it uses less digits than its factorization.

29900008 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2149 (or 2145 counting only the distinct ones).

The product of its (nonzero) digits is 1296, while the sum is 28.

The square root of 29900008 is about 5468.0899773138. The cubic root of 29900008 is about 310.3776458996.

The spelling of 29900008 in words is "twenty-nine million, nine hundred thousand, eight".

Divisors: 1 2 4 8 17 34 68 109 136 218 436 872 1853 2017 3706 4034 7412 8068 14824 16136 34289 68578 137156 219853 274312 439706 879412 1758824 3737501 7475002 14950004 29900008