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29800642 = 231147911
BaseRepresentation
bin111000110101…
…1100011000010
32002002000210111
41301223203002
530112110032
62542421534
7511205224
oct161534302
962060714
1029800642
1115904733
129b918aa
136235321
143d5a414
152939c47
hex1c6b8c2

29800642 has 8 divisors (see below), whose sum is σ = 44845632. Its totient is φ = 14852100.

The previous prime is 29800619. The next prime is 29800657. The reversal of 29800642 is 24600892.

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

It is a super-2 number, since 2×298006422 = 1776156527224328, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 23334 + ... + 24577.

It is an arithmetic number, because the mean of its divisors is an integer number (5605704).

Almost surely, 229800642 is an apocalyptic number.

29800642 is a deficient number, since it is larger than the sum of its proper divisors (15044990).

29800642 is a wasteful number, since it uses less digits than its factorization.

29800642 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 48224.

The product of its (nonzero) digits is 6912, while the sum is 31.

The square root of 29800642 is about 5458.9964279160. The cubic root of 29800642 is about 310.0334407213.

The spelling of 29800642 in words is "twenty-nine million, eight hundred thousand, six hundred forty-two".

Divisors: 1 2 311 622 47911 95822 14900321 29800642