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61600380392831 = 730492886210017
BaseRepresentation
bin11100000000110011101001…
…10010101001010101111111
322002002221100102102221210212
432000121310302221111333
531033230034340032311
6335002454000223035
715655323565012460
oct1600316462512577
9262087312387725
1061600380392831
111869a6358a4335
126aaa69690aa7b
13284ab7753c437
14112d68d762d67
1571c579775c8b
hex380674ca957f

61600380392831 has 8 divisors (see below), whose sum is σ = 70423524439200. Its totient is φ = 52783008772608.

The previous prime is 61600380392807. The next prime is 61600380392843. The reversal of 61600380392831 is 13829308300616.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-61600380392831 is a prime.

It is a super-2 number, since 2×616003803928312 (a number of 28 digits) contains 22 as substring.

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 61600380392831.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (61600380392891) 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, 1443083666 + ... + 1443126351.

It is an arithmetic number, because the mean of its divisors is an integer number (8802940554900).

Almost surely, 261600380392831 is an apocalyptic number.

61600380392831 is a deficient number, since it is larger than the sum of its proper divisors (8823144046369).

61600380392831 is a wasteful number, since it uses less digits than its factorization.

61600380392831 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2886213073.

The product of its (nonzero) digits is 1119744, while the sum is 50.

The spelling of 61600380392831 in words is "sixty-one trillion, six hundred billion, three hundred eighty million, three hundred ninety-two thousand, eight hundred thirty-one".

Divisors: 1 7 3049 21343 2886210017 20203470119 8800054341833 61600380392831