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671763957076 = 221373967309011
BaseRepresentation
bin10011100011010000100…
…00001000010101010100
32101012221101101210120101
421301220100020111110
542001233033111301
61232334252543444
766350636264452
oct11615020102524
92335841353511
10671763957076
11239991271733
12aa238481b84
134b468685534
142472926d9d2
151271a267701
hex9c68408554

671763957076 has 24 divisors (see below), whose sum is σ = 1184470189056. Its totient is φ = 333345155520.

The previous prime is 671763957071. The next prime is 671763957103. The reversal of 671763957076 is 670759367176.

It is a junction number, because it is equal to n+sod(n) for n = 671763956999 and 671763957017.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (671763957071) 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, 2019411 + ... + 2328421.

It is an arithmetic number, because the mean of its divisors is an integer number (49352924544).

Almost surely, 2671763957076 is an apocalyptic number.

It is an amenable number.

671763957076 is a deficient number, since it is larger than the sum of its proper divisors (512706231980).

671763957076 is a wasteful number, since it uses less digits than its factorization.

671763957076 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 313119 (or 313117 counting only the distinct ones).

The product of its (nonzero) digits is 70013160, while the sum is 64.

The spelling of 671763957076 in words is "six hundred seventy-one billion, seven hundred sixty-three million, nine hundred fifty-seven thousand, seventy-six".

Divisors: 1 2 4 137 274 548 3967 7934 15868 309011 543479 618022 1086958 1236044 2173916 42334507 84669014 169338028 1225846637 2451693274 4903386548 167940989269 335881978538 671763957076