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208148952 = 2331117192441
BaseRepresentation
bin11000110100000…
…01100111011000
3112111200001200110
430122001213120
5411241231302
632353204320
75105144154
oct1432014730
9474601613
10208148952
11a7549430
12598606a0
133417b47b
141d904064
1513418b6c
hexc6819d8

208148952 has 128 divisors (see below), whose sum is σ = 632966400. Its totient is φ = 56217600.

The previous prime is 208148917. The next prime is 208148999. The reversal of 208148952 is 259841802.

It is a self number, because there is not a number n which added to its sum of digits gives 208148952.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 84052 + ... + 86492.

It is an arithmetic number, because the mean of its divisors is an integer number (4945050).

Almost surely, 2208148952 is an apocalyptic number.

208148952 is a gapful number since it is divisible by the number (22) 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 208148952, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (316483200).

208148952 is an abundant number, since it is smaller than the sum of its proper divisors (424817448).

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

208148952 is a wasteful number, since it uses less digits than its factorization.

208148952 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2497 (or 2493 counting only the distinct ones).

The product of its (nonzero) digits is 46080, while the sum is 39.

The square root of 208148952 is about 14427.3681591619. The cubic root of 208148952 is about 592.6406125350.

The spelling of 208148952 in words is "two hundred eight million, one hundred forty-eight thousand, nine hundred fifty-two".

Divisors: 1 2 3 4 6 8 11 12 17 19 22 24 33 34 38 44 51 57 66 68 76 88 102 114 132 136 152 187 204 209 228 264 323 374 408 418 456 561 627 646 748 836 969 1122 1254 1292 1496 1672 1938 2244 2441 2508 2584 3553 3876 4488 4882 5016 7106 7323 7752 9764 10659 14212 14646 19528 21318 26851 28424 29292 41497 42636 46379 53702 58584 80553 82994 85272 92758 107404 124491 139137 161106 165988 185516 214808 248982 278274 322212 331976 371032 456467 497964 510169 556548 644424 788443 912934 995928 1020338 1113096 1369401 1530507 1576886 1825868 2040676 2365329 2738802 3061014 3153772 3651736 4081352 4730658 5477604 6122028 6307544 8672873 9461316 10955208 12244056 17345746 18922632 26018619 34691492 52037238 69382984 104074476 208148952