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78255053002750 = 2531324078477847
BaseRepresentation
bin10001110010110000101100…
…101000101101011111111110
3101021002002222012020011110011
4101302300230220231133332
540224112322032042000
6434233513002333434
722324512110301421
oct2162605450553776
9337062865204404
1078255053002750
1122a30866351338
12893a42aaba27a
13348855c4b56b0
1415477c9a539b8
1590a8d819b2ba
hex472c2ca2d7fe

78255053002750 has 32 divisors (see below), whose sum is σ = 157762186860096. Its totient is φ = 28894173415200.

The previous prime is 78255053002727. The next prime is 78255053002813. The reversal of 78255053002750 is 5720035055287.

It is a super-2 number, since 2×782550530027502 (a number of 29 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 78255053002694 and 78255053002703.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 12039235674 + ... + 12039242173.

It is an arithmetic number, because the mean of its divisors is an integer number (4930068339378).

Almost surely, 278255053002750 is an apocalyptic number.

78255053002750 is an abundant number, since it is smaller than the sum of its proper divisors (79507133857346).

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

78255053002750 is a wasteful number, since it uses less digits than its factorization.

78255053002750 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24078477877 (or 24078477867 counting only the distinct ones).

The product of its (nonzero) digits is 2940000, while the sum is 49.

The spelling of 78255053002750 in words is "seventy-eight trillion, two hundred fifty-five billion, fifty-three million, two thousand, seven hundred fifty".

Divisors: 1 2 5 10 13 25 26 50 65 125 130 250 325 650 1625 3250 24078477847 48156955694 120392389235 240784778470 313020212011 601961946175 626040424022 1203923892350 1565101060055 3009809730875 3130202120110 6019619461750 7825505300275 15651010600550 39127526501375 78255053002750