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13000287753972 = 2233303739635507
BaseRepresentation
bin1011110100101101110110…
…0010001001011011110100
31201000211000101221221112000
42331023131202021123310
53200444042131111342
643352125540055300
72511145151435301
oct275133542113364
951024011857460
1013000287753972
11416243357a5a2
12155b662094530
13733bca48923c
1432d30832c0a8
15178279a7744c
hexbd2dd8896f4

13000287753972 has 48 divisors (see below), whose sum is σ = 33715548525120. Its totient is φ = 4332002263776.

The previous prime is 13000287753967. The next prime is 13000287753977. The reversal of 13000287753972 is 27935778200031.

13000287753972 is a `hidden beast` number, since 1 + 30 + 0 + 0 + 2 + 8 + 7 + 7 + 539 + 72 = 666.

It is an interprime number because it is at equal distance from previous prime (13000287753967) and next prime (13000287753977).

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13000287753977) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 19489758 + ... + 20145749.

It is an arithmetic number, because the mean of its divisors is an integer number (702407260940).

Almost surely, 213000287753972 is an apocalyptic number.

13000287753972 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

13000287753972 is an abundant number, since it is smaller than the sum of its proper divisors (20715260771148).

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

13000287753972 is a wasteful number, since it uses less digits than its factorization.

13000287753972 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 39638557 (or 39638549 counting only the distinct ones).

The product of its (nonzero) digits is 4445280, while the sum is 54.

The spelling of 13000287753972 in words is "thirteen trillion, two hundred eighty-seven million, seven hundred fifty-three thousand, nine hundred seventy-two".

Divisors: 1 2 3 4 6 9 12 18 27 36 54 108 3037 6074 9111 12148 18222 27333 36444 54666 81999 109332 163998 327996 39635507 79271014 118906521 158542028 237813042 356719563 475626084 713439126 1070158689 1426878252 2140317378 4280634756 120373034759 240746069518 361119104277 481492139036 722238208554 1083357312831 1444476417108 2166714625662 3250071938493 4333429251324 6500143876986 13000287753972