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28997010 = 2325746027
BaseRepresentation
bin110111010011…
…1010110010010
32000120012102100
41232213112102
524410401020
62513301230
7501320250
oct156472622
960505370
1028997010
1115405979
129864816
1360135c3
143bcb5d0
15282ba90
hex1ba7592

28997010 has 48 divisors (see below), whose sum is σ = 86164416. Its totient is φ = 6627744.

The previous prime is 28996993. The next prime is 28997027. The reversal of 28997010 is 1079982.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (28996993) and next prime (28997027).

It is a hoax number, since the sum of its digits (36) coincides with the sum of the digits of its distinct prime factors.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 22384 + ... + 23643.

It is an arithmetic number, because the mean of its divisors is an integer number (1795092).

Almost surely, 228997010 is an apocalyptic number.

28997010 is an abundant number, since it is smaller than the sum of its proper divisors (57167406).

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

28997010 is a wasteful number, since it uses less digits than its factorization.

28997010 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 46047 (or 46044 counting only the distinct ones).

The product of its (nonzero) digits is 9072, while the sum is 36.

The square root of 28997010 is about 5384.8871854478. The cubic root of 28997010 is about 307.2211233237.

The spelling of 28997010 in words is "twenty-eight million, nine hundred ninety-seven thousand, ten".