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29947042 = 264723143
BaseRepresentation
bin111001000111…
…1010010100010
32002100110121201
41302033102202
530131301132
62545511414
7512355106
oct162172242
962313551
1029947042
11159a4724
12a04256a
136286b58
143d97906
1529682e7
hex1c8f4a2

29947042 has 8 divisors (see below), whose sum is σ = 44991936. Its totient is φ = 14949732.

The previous prime is 29947033. The next prime is 29947079. The reversal of 29947042 is 24074992.

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

It is a junction number, because it is equal to n+sod(n) for n = 29946992 and 29947010.

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, 10278 + ... + 12865.

It is an arithmetic number, because the mean of its divisors is an integer number (5623992).

Almost surely, 229947042 is an apocalyptic number.

29947042 is a deficient number, since it is larger than the sum of its proper divisors (15044894).

29947042 is a wasteful number, since it uses less digits than its factorization.

29947042 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23792.

The product of its (nonzero) digits is 36288, while the sum is 37.

The square root of 29947042 is about 5472.3890578065. The cubic root of 29947042 is about 310.5403064391.

The spelling of 29947042 in words is "twenty-nine million, nine hundred forty-seven thousand, forty-two".

Divisors: 1 2 647 1294 23143 46286 14973521 29947042