Search a number
-
+
338615472 = 24313717643
BaseRepresentation
bin10100001011101…
…101110010110000
3212121011110002210
4110023231302300
51143141143342
653333412120
711251120056
oct2413556260
9777143083
10338615472
111641598a8
129549a040
13551cb3b0
1432d861d6
151eada79c
hex142edcb0

338615472 has 80 divisors (see below), whose sum is σ = 955438848. Its totient is φ = 102708480.

The previous prime is 338615471. The next prime is 338615479. The reversal of 338615472 is 274516833.

It is a super-2 number, since 2×3386154722 = 229320875755565568, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (39).

It is a self number, because there is not a number n which added to its sum of digits gives 338615472.

It is not an unprimeable number, because it can be changed into a prime (338615471) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 40483 + ... + 48125.

Almost surely, 2338615472 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 338615472, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (477719424).

338615472 is an abundant number, since it is smaller than the sum of its proper divisors (616823376).

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

338615472 is a wasteful number, since it uses less digits than its factorization.

338615472 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7738 (or 7732 counting only the distinct ones).

The product of its digits is 120960, while the sum is 39.

The square root of 338615472 is about 18401.5073295641. The cubic root of 338615472 is about 697.0045278131.

The spelling of 338615472 in words is "three hundred thirty-eight million, six hundred fifteen thousand, four hundred seventy-two".

Divisors: 1 2 3 4 6 8 12 13 16 24 26 39 48 52 71 78 104 142 156 208 213 284 312 426 568 624 852 923 1136 1704 1846 2769 3408 3692 5538 7384 7643 11076 14768 15286 22152 22929 30572 44304 45858 61144 91716 99359 122288 183432 198718 298077 366864 397436 542653 596154 794872 1085306 1192308 1589744 1627959 2170612 2384616 3255918 4341224 4769232 6511836 7054489 8682448 13023672 14108978 21163467 26047344 28217956 42326934 56435912 84653868 112871824 169307736 338615472