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47220480 = 283254099
BaseRepresentation
bin1011010000100…
…0011100000000
310021212001022200
42310020130000
544042023410
64404033200
71112240016
oct264103400
9107761280
1047220480
112472249a
1213992800
139a24218
1463b28b6
15422b3c0
hex2d08700

47220480 has 108 divisors (see below), whose sum is σ = 163417800. Its totient is φ = 12589056.

The previous prime is 47220451. The next prime is 47220517. The reversal of 47220480 is 8402274.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 9471 + ... + 13569.

Almost surely, 247220480 is an apocalyptic number.

47220480 is a gapful number since it is divisible by the number (40) 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 47220480, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (81708900).

47220480 is an abundant number, since it is smaller than the sum of its proper divisors (116197320).

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

47220480 is a wasteful number, since it uses less digits than its factorization.

47220480 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4126 (or 4109 counting only the distinct ones).

The product of its (nonzero) digits is 3584, while the sum is 27.

The square root of 47220480 is about 6871.7159429068. The cubic root of 47220480 is about 361.4460356882.

The spelling of 47220480 in words is "forty-seven million, two hundred twenty thousand, four hundred eighty".

Divisors: 1 2 3 4 5 6 8 9 10 12 15 16 18 20 24 30 32 36 40 45 48 60 64 72 80 90 96 120 128 144 160 180 192 240 256 288 320 360 384 480 576 640 720 768 960 1152 1280 1440 1920 2304 2880 3840 4099 5760 8198 11520 12297 16396 20495 24594 32792 36891 40990 49188 61485 65584 73782 81980 98376 122970 131168 147564 163960 184455 196752 245940 262336 295128 327920 368910 393504 491880 524672 590256 655840 737820 787008 983760 1049344 1180512 1311680 1475640 1574016 1967520 2361024 2623360 2951280 3148032 3935040 4722048 5246720 5902560 7870080 9444096 11805120 15740160 23610240 47220480