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28623496 = 23113759149
BaseRepresentation
bin110110100110…
…0001010001000
31222212020001111
41231030022020
524311422441
62501300104
7465203266
oct155141210
958766044
1028623496
1115180290
129704634
135c125a5
143b31436
1527a6081
hex1b4c288

28623496 has 64 divisors (see below), whose sum is σ = 61560000. Its totient is φ = 12360960.

The previous prime is 28623487. The next prime is 28623499. The reversal of 28623496 is 69432682.

It is not an unprimeable number, because it can be changed into a prime (28623499) 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, 192030 + ... + 192178.

It is an arithmetic number, because the mean of its divisors is an integer number (961875).

Almost surely, 228623496 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 28623496, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (30780000).

28623496 is an abundant number, since it is smaller than the sum of its proper divisors (32936504).

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

28623496 is a wasteful number, since it uses less digits than its factorization.

28623496 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 262 (or 258 counting only the distinct ones).

The product of its digits is 124416, while the sum is 40.

The square root of 28623496 is about 5350.0930833024. The cubic root of 28623496 is about 305.8963010289.

The spelling of 28623496 in words is "twenty-eight million, six hundred twenty-three thousand, four hundred ninety-six".

Divisors: 1 2 4 8 11 22 37 44 59 74 88 118 148 149 236 296 298 407 472 596 649 814 1192 1298 1628 1639 2183 2596 3256 3278 4366 5192 5513 6556 8732 8791 11026 13112 17464 17582 22052 24013 35164 44104 48026 60643 70328 96052 96701 121286 192104 193402 242572 325267 386804 485144 650534 773608 1301068 2602136 3577937 7155874 14311748 28623496