Search a number
-
+
38878891652514 = 2319777342551699
BaseRepresentation
bin10001101011100001100101…
…00001101011010110100010
312002122210012210210002102010
420311300302201223112202
520043442432230340024
6214404414413333350
711121623115241344
oct1065606241532642
9162583183702363
1038878891652514
111142a499849201
12443aba6197256
131890357600564
14985a69857294
154764e106ab29
hex235c3286b5a2

38878891652514 has 32 divisors (see below), whose sum is σ = 78253597540800. Its totient is φ = 12877165055552.

The previous prime is 38878891652473. The next prime is 38878891652551. The reversal of 38878891652514 is 41525619887883.

It is a super-2 number, since 2×388788916525142 (a number of 28 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 20362164 + ... + 22189535.

It is an arithmetic number, because the mean of its divisors is an integer number (2445424923150).

Almost surely, 238878891652514 is an apocalyptic number.

38878891652514 is an abundant number, since it is smaller than the sum of its proper divisors (39374705888286).

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

38878891652514 is a wasteful number, since it uses less digits than its factorization.

38878891652514 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 42552674.

The product of its digits is 928972800, while the sum is 75.

The spelling of 38878891652514 in words is "thirty-eight trillion, eight hundred seventy-eight billion, eight hundred ninety-one million, six hundred fifty-two thousand, five hundred fourteen".

Divisors: 1 2 3 6 197 394 591 773 1182 1546 2319 4638 152281 304562 456843 913686 42551699 85103398 127655097 255310194 8382684703 16765369406 25148054109 32892463327 50296108218 65784926654 98677389981 197354779962 6479815275419 12959630550838 19439445826257 38878891652514