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42392577747 = 3136716223719
BaseRepresentation
bin100111011110110010…
…110110011011010011
311001102102010002011010
4213132302312123103
51143304444441442
631250324022003
73030345652062
oct473662663323
9131372102133
1042392577747
1116a84561123
128271231903
133cc796ca40
1420a22581d9
151181a93b9c
hex9decb66d3

42392577747 has 16 divisors (see below), whose sum is σ = 61779925760. Its totient is φ = 25698369312.

The previous prime is 42392577727. The next prime is 42392577749. The reversal of 42392577747 is 74777529324.

It is not a de Polignac number, because 42392577747 - 223 = 42384189139 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (42392577749) 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, 8109247 + ... + 8114472.

It is an arithmetic number, because the mean of its divisors is an integer number (3861245360).

Almost surely, 242392577747 is an apocalyptic number.

42392577747 is a deficient number, since it is larger than the sum of its proper divisors (19387348013).

42392577747 is a wasteful number, since it uses less digits than its factorization.

42392577747 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16223802.

The product of its digits is 20744640, while the sum is 57.

The spelling of 42392577747 in words is "forty-two billion, three hundred ninety-two million, five hundred seventy-seven thousand, seven hundred forty-seven".

Divisors: 1 3 13 39 67 201 871 2613 16223719 48671157 210908347 632725041 1086989173 3260967519 14130859249 42392577747