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28952112 = 2437199433
BaseRepresentation
bin110111001110…
…0011000110000
32000110220211110
41232130120300
524402431422
62512313320
7501042330
oct156343060
960426743
1028952112
1115385172
129842840
135cc9037
143bb90c0
15281d60c
hex1b9c630

28952112 has 80 divisors (see below), whose sum is σ = 86105600. Its totient is φ = 8211456.

The previous prime is 28952111. The next prime is 28952113. The reversal of 28952112 is 21125982.

It is an interprime number because it is at equal distance from previous prime (28952111) and next prime (28952113).

It is a self number, because there is not a number n which added to its sum of digits gives 28952112.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28952111) 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, 66648 + ... + 67080.

It is an arithmetic number, because the mean of its divisors is an integer number (1076320).

Almost surely, 228952112 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 28952112, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (43052800).

28952112 is an abundant number, since it is smaller than the sum of its proper divisors (57153488).

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

28952112 is a wasteful number, since it uses less digits than its factorization.

28952112 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 650 (or 644 counting only the distinct ones).

The product of its digits is 2880, while the sum is 30.

The square root of 28952112 is about 5380.7166808893. The cubic root of 28952112 is about 307.0624777793.

The spelling of 28952112 in words is "twenty-eight million, nine hundred fifty-two thousand, one hundred twelve".

Divisors: 1 2 3 4 6 7 8 12 14 16 21 24 28 42 48 56 84 112 168 199 336 398 433 597 796 866 1194 1299 1393 1592 1732 2388 2598 2786 3031 3184 3464 4179 4776 5196 5572 6062 6928 8358 9093 9552 10392 11144 12124 16716 18186 20784 22288 24248 33432 36372 48496 66864 72744 86167 145488 172334 258501 344668 517002 603169 689336 1034004 1206338 1378672 1809507 2068008 2412676 3619014 4136016 4825352 7238028 9650704 14476056 28952112