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42499923 = 337937379
BaseRepresentation
bin1010001000011…
…1111101010011
32221222012221020
42202013331103
541334444143
64114530523
71024146324
oct242077523
987865836
1042499923
1121a98904
1212296a43
138a606ab
14590444b
153ae7883
hex2887f53

42499923 has 8 divisors (see below), whose sum is σ = 56817600. Its totient is φ = 28257768.

The previous prime is 42499907. The next prime is 42499927. The reversal of 42499923 is 32999424.

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

It is not a de Polignac number, because 42499923 - 24 = 42499907 is a prime.

It is not an unprimeable number, because it can be changed into a prime (42499927) 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, 17553 + ... + 19826.

It is an arithmetic number, because the mean of its divisors is an integer number (7102200).

Almost surely, 242499923 is an apocalyptic number.

42499923 is a deficient number, since it is larger than the sum of its proper divisors (14317677).

42499923 is a wasteful number, since it uses less digits than its factorization.

42499923 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 37761.

The product of its digits is 139968, while the sum is 42.

The square root of 42499923 is about 6519.1964995696. The cubic root of 42499923 is about 348.9763915908.

The spelling of 42499923 in words is "forty-two million, four hundred ninety-nine thousand, nine hundred twenty-three".

Divisors: 1 3 379 1137 37379 112137 14166641 42499923