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60000012157 = 187787319511
BaseRepresentation
bin110111111000010001…
…111000011101111101
312201212111121102102111
4313320101320131331
51440340000342112
643321424254021
74222566455101
oct677021703575
9181774542374
1060000012157
112349a496208
12b765a71311
135872762897
142c92897901
1518627565a7
hexdf847877d

60000012157 has 4 divisors (see below), whose sum is σ = 60000519456. Its totient is φ = 59999504860.

The previous prime is 60000012151. The next prime is 60000012161. The reversal of 60000012157 is 75121000006.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-60000012157 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (60000012151) 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, 28032 + ... + 347542.

It is an arithmetic number, because the mean of its divisors is an integer number (15000129864).

Almost surely, 260000012157 is an apocalyptic number.

It is an amenable number.

60000012157 is a deficient number, since it is larger than the sum of its proper divisors (507299).

60000012157 is a wasteful number, since it uses less digits than its factorization.

60000012157 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 507298.

The product of its (nonzero) digits is 420, while the sum is 22.

The spelling of 60000012157 in words is "sixty billion, twelve thousand, one hundred fifty-seven".

Divisors: 1 187787 319511 60000012157