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38722839141 = 376727521563
BaseRepresentation
bin100100000100000011…
…111010001001100101
310200221122212001011110
4210010003322021211
51113301021323031
625442232455233
72540405462520
oct440403721145
9120848761143
1038722839141
11154710401a8
12760824a519
1338615b308c
141c34b13bb7
151019808c46
hex9040fa265

38722839141 has 16 divisors (see below), whose sum is σ = 59886923264. Its totient is φ = 21797077104.

The previous prime is 38722839137. The next prime is 38722839143. The reversal of 38722839141 is 14193822783.

It is a happy number.

It is not a de Polignac number, because 38722839141 - 22 = 38722839137 is a prime.

It is a super-2 number, since 2×387228391412 (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (38722839143) 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, 13759375 + ... + 13762188.

It is an arithmetic number, because the mean of its divisors is an integer number (3742932704).

Almost surely, 238722839141 is an apocalyptic number.

It is an amenable number.

38722839141 is a deficient number, since it is larger than the sum of its proper divisors (21164084123).

38722839141 is a wasteful number, since it uses less digits than its factorization.

38722839141 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27521640.

The product of its digits is 580608, while the sum is 48.

The spelling of 38722839141 in words is "thirty-eight billion, seven hundred twenty-two million, eight hundred thirty-nine thousand, one hundred forty-one".

Divisors: 1 3 7 21 67 201 469 1407 27521563 82564689 192650941 577952823 1843944721 5531834163 12907613047 38722839141