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198441664 = 2629313449
BaseRepresentation
bin10111101001111…
…11101011000000
3111211101212210021
423310333223000
5401300113124
631405143224
74626504061
oct1364775300
9454355707
10198441664
11a2019183
125655ab14
133215cc05
141c4d8568
151264c7e4
hexbd3fac0

198441664 has 56 divisors (see below), whose sum is σ = 420624000. Its totient is φ = 92682240.

The previous prime is 198441613. The next prime is 198441701. The reversal of 198441664 is 466144891.

It is a super-2 number, since 2×1984416642 = 78758188022177792, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 198441664.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 55812 + ... + 59260.

Almost surely, 2198441664 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 198441664, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (210312000).

198441664 is an abundant number, since it is smaller than the sum of its proper divisors (222182336).

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

198441664 is a wasteful number, since it uses less digits than its factorization.

198441664 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3521 (or 3511 counting only the distinct ones).

The product of its digits is 165888, while the sum is 43.

The square root of 198441664 is about 14086.9323843057. The cubic root of 198441664 is about 583.2807182657.

The spelling of 198441664 in words is "one hundred ninety-eight million, four hundred forty-one thousand, six hundred sixty-four".

Divisors: 1 2 4 8 16 29 31 32 58 62 64 116 124 232 248 464 496 899 928 992 1798 1856 1984 3449 3596 6898 7192 13796 14384 27592 28768 55184 57536 100021 106919 110368 200042 213838 220736 400084 427676 800168 855352 1600336 1710704 3100651 3200672 3421408 6201302 6401344 6842816 12402604 24805208 49610416 99220832 198441664