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38100935561 = 136148046577
BaseRepresentation
bin100011011110111111…
…100010001110001001
310122100022122001211112
4203132333202032021
51111012314414221
625300415140105
72516114415533
oct433677421611
9118308561745
1038100935561
1115181a918a7
127473b14635
1337927b87b0
141bb62a8853
15ecee1115b
hex8defe2389

38100935561 has 8 divisors (see below), whose sum is σ = 41704429704. Its totient is φ = 34593534720.

The previous prime is 38100935557. The next prime is 38100935563. The reversal of 38100935561 is 16553900183.

It can be written as a sum of positive squares in 4 ways, for example, as 2478147961 + 35622787600 = 49781^2 + 188740^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 38100935561 - 22 = 38100935557 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (38100935563) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 24022496 + ... + 24024081.

It is an arithmetic number, because the mean of its divisors is an integer number (5213053713).

Almost surely, 238100935561 is an apocalyptic number.

It is an amenable number.

38100935561 is a deficient number, since it is larger than the sum of its proper divisors (3603494143).

38100935561 is a wasteful number, since it uses less digits than its factorization.

38100935561 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 48046651.

The product of its (nonzero) digits is 97200, while the sum is 41.

The spelling of 38100935561 in words is "thirty-eight billion, one hundred million, nine hundred thirty-five thousand, five hundred sixty-one".

Divisors: 1 13 61 793 48046577 624605501 2930841197 38100935561