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220157952 = 211375119
BaseRepresentation
bin11010001111101…
…01100000000000
3120100021011221020
431013311200000
5422330023302
633502425440
75312211630
oct1507654000
9510234836
10220157952
11103300a23
1261892280
13367c45a1
142134c6c0
15144dbebc
hexd1f5800

220157952 has 96 divisors (see below), whose sum is σ = 670924800. Its totient is φ = 62889984.

The previous prime is 220157933. The next prime is 220157983. The reversal of 220157952 is 259751022.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (96).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 40449 + ... + 45567.

It is an arithmetic number, because the mean of its divisors is an integer number (6988800).

Almost surely, 2220157952 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 220157952, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (335462400).

220157952 is an abundant number, since it is smaller than the sum of its proper divisors (450766848).

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

220157952 is an equidigital number, since it uses as much as digits as its factorization.

220157952 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5151 (or 5131 counting only the distinct ones).

The product of its (nonzero) digits is 12600, while the sum is 33.

The square root of 220157952 is about 14837.7205796578. The cubic root of 220157952 is about 603.8255128042.

The spelling of 220157952 in words is "two hundred twenty million, one hundred fifty-seven thousand, nine hundred fifty-two".

Divisors: 1 2 3 4 6 7 8 12 14 16 21 24 28 32 42 48 56 64 84 96 112 128 168 192 224 256 336 384 448 512 672 768 896 1024 1344 1536 1792 2048 2688 3072 3584 5119 5376 6144 7168 10238 10752 14336 15357 20476 21504 30714 35833 40952 43008 61428 71666 81904 107499 122856 143332 163808 214998 245712 286664 327616 429996 491424 573328 655232 859992 982848 1146656 1310464 1719984 1965696 2293312 2620928 3439968 3931392 4586624 5241856 6879936 7862784 9173248 10483712 13759872 15725568 18346496 27519744 31451136 36692992 55039488 73385984 110078976 220157952