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38934468693 = 35316318191
BaseRepresentation
bin100100010000101011…
…001101100001010101
310201111102001221100000
4210100223031201111
51114214210444233
625515232441513
72545555344351
oct442053154125
9121442057300
1038934468693
111556a54665a
1276670a9299
1338963ac873
141c54c82461
15102d1add13
hex910acd855

38934468693 has 48 divisors (see below), whose sum is σ = 60305702912. Its totient is φ = 25076142000.

The previous prime is 38934468647. The next prime is 38934468707. The reversal of 38934468693 is 39686443983.

38934468693 is a `hidden beast` number, since 3 + 89 + 3 + 4 + 468 + 6 + 93 = 666.

It is not a de Polignac number, because 38934468693 - 213 = 38934460501 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 38934468693.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (38934468623) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 4749228 + ... + 4757418.

Almost surely, 238934468693 is an apocalyptic number.

It is an amenable number.

38934468693 is a deficient number, since it is larger than the sum of its proper divisors (21371234219).

38934468693 is an equidigital number, since it uses as much as digits as its factorization.

38934468693 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8868 (or 8856 counting only the distinct ones).

The product of its digits is 80621568, while the sum is 63.

The spelling of 38934468693 in words is "thirty-eight billion, nine hundred thirty-four million, four hundred sixty-eight thousand, six hundred ninety-three".

Divisors: 1 3 9 27 31 81 93 243 279 631 837 1893 2511 5679 7533 8191 17037 19561 24573 51111 58683 73719 153333 176049 221157 253921 528147 663471 761763 1584441 1990413 2285289 4753323 5168521 6855867 15505563 20567601 46516689 61702803 139550067 160224151 418650201 480672453 1255950603 1442017359 4326052077 12978156231 38934468693