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7971334972 = 221992833743
BaseRepresentation
bin1110110110010000…
…01110101100111100
3202120112110202212121
413123020032230330
5112311130204342
63354553212324
7401352141436
oct73310165474
922515422777
107971334972
113420679a47
1216657010a4
139a0617973
14558965656
15319c37067
hex1db20eb3c

7971334972 has 6 divisors (see below), whose sum is σ = 13949836208. Its totient is φ = 3985667484.

The previous prime is 7971334949. The next prime is 7971334979. The reversal of 7971334972 is 2794331797.

It is a super-3 number, since 3×79713349723 (a number of 31 digits) contains 333 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7971334979) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 996416868 + ... + 996416875.

Almost surely, 27971334972 is an apocalyptic number.

It is an amenable number.

7971334972 is a deficient number, since it is larger than the sum of its proper divisors (5978501236).

7971334972 is a wasteful number, since it uses less digits than its factorization.

7971334972 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1992833747 (or 1992833745 counting only the distinct ones).

The product of its digits is 2000376, while the sum is 52.

The square root of 7971334972 is about 89282.3329220289. The cubic root of 7971334972 is about 1997.6083889048.

The spelling of 7971334972 in words is "seven billion, nine hundred seventy-one million, three hundred thirty-four thousand, nine hundred seventy-two".

Divisors: 1 2 4 1992833743 3985667486 7971334972