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38720451141079 = 1317691219731513
BaseRepresentation
bin10001100110111010011101…
…01111000101110111010111
312002002122020211000011112221
420303131032233011313113
520033343440443003304
6214203532451323211
711104313606150131
oct1063351657056727
9162078224004487
1038720451141079
1111379284257974
1244143488b0507
13187b427484146
1497c1190d0051
1547231b479054
hex23374ebc5dd7

38720451141079 has 16 divisors (see below), whose sum is σ = 39071205946080. Its totient is φ = 38370543943680.

The previous prime is 38720451141059. The next prime is 38720451141091. The reversal of 38720451141079 is 97014115402783.

It is a cyclic number.

It is not a de Polignac number, because 38720451141079 - 231 = 38718303657431 is a prime.

It is a super-2 number, since 2×387204511410792 (a number of 28 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (38720451141059) 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, 1228697827 + ... + 1228729339.

It is an arithmetic number, because the mean of its divisors is an integer number (2441950371630).

Almost surely, 238720451141079 is an apocalyptic number.

38720451141079 is a deficient number, since it is larger than the sum of its proper divisors (350754805001).

38720451141079 is a wasteful number, since it uses less digits than its factorization.

38720451141079 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 44610.

The product of its (nonzero) digits is 1693440, while the sum is 52.

The spelling of 38720451141079 in words is "thirty-eight trillion, seven hundred twenty billion, four hundred fifty-one million, one hundred forty-one thousand, seventy-nine".

Divisors: 1 131 769 12197 31513 100739 1597807 4128203 9379493 24233497 384364061 1228713583 3174588107 50351691991 295575962909 38720451141079