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42949929 = 3115092557
BaseRepresentation
bin1010001111010…
…1110100101001
32222211002020010
42203311310221
541443344204
64132322133
71031032311
oct243656451
988732203
1042949929
1122275a10
1212473349
138b8a479
1459c0441
153b85d89
hex28f5d29

42949929 has 16 divisors (see below), whose sum is σ = 62619840. Its totient is φ = 25968960.

The previous prime is 42949891. The next prime is 42949931. The reversal of 42949929 is 92994924.

It is not a de Polignac number, because 42949929 - 213 = 42941737 is a prime.

It is a super-2 number, since 2×429499292 = 3689392802210082, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (42949129) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 15519 + ... + 18075.

It is an arithmetic number, because the mean of its divisors is an integer number (3913740).

Almost surely, 242949929 is an apocalyptic number.

It is an amenable number.

42949929 is a deficient number, since it is larger than the sum of its proper divisors (19669911).

42949929 is a wasteful number, since it uses less digits than its factorization.

42949929 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3080.

The product of its digits is 419904, while the sum is 48.

The square root of 42949929 is about 6553.6195342726. The cubic root of 42949929 is about 350.2037697777.

The spelling of 42949929 in words is "forty-two million, nine hundred forty-nine thousand, nine hundred twenty-nine".

Divisors: 1 3 11 33 509 1527 2557 5599 7671 16797 28127 84381 1301513 3904539 14316643 42949929