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78373490740 = 22515135397333
BaseRepresentation
bin100100011111101101…
…1001001000000110100
321111021222112211202021
41020333123021000310
52241002103200430
6100000531522524
75443111452046
oct1107733110064
9244258484667
1078373490740
1130268879656
1213233159444
137510179bbc
143b16b43a96
15208a7d507a
hex123f6c9034

78373490740 has 48 divisors (see below), whose sum is σ = 165743706240. Its totient is φ = 31128739200.

The previous prime is 78373490711. The next prime is 78373490743. The reversal of 78373490740 is 4709437387.

It is a super-2 number, since 2×783734907402 (a number of 23 digits) contains 22 as substring.

It is a Smith number, since the sum of its digits (52) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (78373490743) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 10684114 + ... + 10691446.

It is an arithmetic number, because the mean of its divisors is an integer number (3452993880).

Almost surely, 278373490740 is an apocalyptic number.

It is an amenable number.

78373490740 is an abundant number, since it is smaller than the sum of its proper divisors (87370215500).

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

78373490740 is a wasteful number, since it uses less digits than its factorization.

78373490740 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11032 (or 11030 counting only the distinct ones).

The product of its (nonzero) digits is 3556224, while the sum is 52.

The spelling of 78373490740 in words is "seventy-eight billion, three hundred seventy-three million, four hundred ninety thousand, seven hundred forty".

Divisors: 1 2 4 5 10 20 151 302 604 755 1510 3020 3539 7078 7333 14156 14666 17695 29332 35390 36665 70780 73330 146660 534389 1068778 1107283 2137556 2214566 2671945 4429132 5343890 5536415 10687780 11072830 22145660 25951487 51902974 103805948 129757435 259514870 519029740 3918674537 7837349074 15674698148 19593372685 39186745370 78373490740