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78348352674 = 2321799599021
BaseRepresentation
bin100100011110111101…
…1001111110010100010
321111020020020200210210
41020331323033302202
52240424134241144
655554233034550
75442355003164
oct1107573176242
9244206220723
1078348352674
1130255669a99
1213226855a56
137507bb7bc7
143b1367c934
1520884bbab9
hex123decfca2

78348352674 has 16 divisors (see below), whose sum is σ = 156704155200. Its totient is φ = 26114875920.

The previous prime is 78348352673. The next prime is 78348352697. The reversal of 78348352674 is 47625384387.

It is a super-2 number, since 2×783483526742 (a number of 23 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (78348352673) 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, 168717 + ... + 430304.

It is an arithmetic number, because the mean of its divisors is an integer number (9794009700).

Almost surely, 278348352674 is an apocalyptic number.

78348352674 is an abundant number, since it is smaller than the sum of its proper divisors (78355802526).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

78348352674 is a wasteful number, since it uses less digits than its factorization.

78348352674 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 620825.

The product of its digits is 27095040, while the sum is 57.

The spelling of 78348352674 in words is "seventy-eight billion, three hundred forty-eight million, three hundred fifty-two thousand, six hundred seventy-four".

Divisors: 1 2 3 6 21799 43598 65397 130794 599021 1198042 1797063 3594126 13058058779 26116117558 39174176337 78348352674