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28598480 = 245597383
BaseRepresentation
bin110110100011…
…0000011010000
31222210221201222
41231012003100
524310122410
62500544212
7465040331
oct155060320
958727658
1028598480
1115163509
1296b2068
135c040a1
143b26288
15279d955
hex1b460d0

28598480 has 80 divisors (see below), whose sum is σ = 69370560. Its totient is φ = 10957824.

The previous prime is 28598441. The next prime is 28598491. The reversal of 28598480 is 8489582.

It is a tau number, because it is divible by the number of its divisors (80).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 344519 + ... + 344601.

It is an arithmetic number, because the mean of its divisors is an integer number (867132).

Almost surely, 228598480 is an apocalyptic number.

28598480 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 28598480, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (34685280).

28598480 is an abundant number, since it is smaller than the sum of its proper divisors (40772080).

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

28598480 is a wasteful number, since it uses less digits than its factorization.

28598480 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 228 (or 222 counting only the distinct ones).

The product of its (nonzero) digits is 184320, while the sum is 44.

The square root of 28598480 is about 5347.7546690176. The cubic root of 28598480 is about 305.8071605987.

The spelling of 28598480 in words is "twenty-eight million, five hundred ninety-eight thousand, four hundred eighty".

Divisors: 1 2 4 5 8 10 16 20 40 59 73 80 83 118 146 166 236 292 295 332 365 415 472 584 590 664 730 830 944 1168 1180 1328 1460 1660 2360 2920 3320 4307 4720 4897 5840 6059 6640 8614 9794 12118 17228 19588 21535 24236 24485 30295 34456 39176 43070 48472 48970 60590 68912 78352 86140 96944 97940 121180 172280 195880 242360 344560 357481 391760 484720 714962 1429924 1787405 2859848 3574810 5719696 7149620 14299240 28598480