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13392738428 = 2211897281431
BaseRepresentation
bin11000111100100010…
…01111100001111100
31021120100210121022012
430132101033201330
5204412020112203
610052540510352
7652612253426
oct143621174174
937510717265
1013392738428
115752940673
12271924b3b8
13135586ccc4
1491099d816
15535b7dbd8
hex31e44f87c

13392738428 has 12 divisors (see below), whose sum is σ = 23439345552. Its totient is φ = 6695782560.

The previous prime is 13392738427. The next prime is 13392738433. The reversal of 13392738428 is 82483729331.

It is a happy number.

It is a super-3 number, since 3×133927384283 (a number of 31 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13392738427) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 93128 + ... + 188303.

It is an arithmetic number, because the mean of its divisors is an integer number (1953278796).

Almost surely, 213392738428 is an apocalyptic number.

It is an amenable number.

13392738428 is a deficient number, since it is larger than the sum of its proper divisors (10046607124).

13392738428 is a wasteful number, since it uses less digits than its factorization.

13392738428 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 293332 (or 293330 counting only the distinct ones).

The product of its digits is 1741824, while the sum is 50.

The spelling of 13392738428 in words is "thirteen billion, three hundred ninety-two million, seven hundred thirty-eight thousand, four hundred twenty-eight".

Divisors: 1 2 4 11897 23794 47588 281431 562862 1125724 3348184607 6696369214 13392738428