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138038026800 = 24352115031689
BaseRepresentation
bin1000000010001110110…
…1010010001000110000
3111012022002220022111010
42000203231102020300
54230200213324200
6143225213550520
712654465603552
oct2004355221060
9435262808433
10138038026800
11535a595a693
12229047a5440
131002b2702cb
146976c314d2
1538cd871150
hex2023b52230

138038026800 has 60 divisors (see below), whose sum is σ = 442181816360. Its totient is φ = 36810140160.

The previous prime is 138038026769. The next prime is 138038026801. The reversal of 138038026800 is 8620830831.

138038026800 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a tau number, because it is divible by the number of its divisors (60).

It is not an unprimeable number, because it can be changed into a prime (138038026801) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 57514645 + ... + 57517044.

Almost surely, 2138038026800 is an apocalyptic number.

138038026800 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

138038026800 is an abundant number, since it is smaller than the sum of its proper divisors (304143789560).

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

138038026800 is a wasteful number, since it uses less digits than its factorization.

138038026800 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 115031710 (or 115031699 counting only the distinct ones).

The product of its (nonzero) digits is 55296, while the sum is 39.

The spelling of 138038026800 in words is "one hundred thirty-eight billion, thirty-eight million, twenty-six thousand, eight hundred".

Divisors: 1 2 3 4 5 6 8 10 12 15 16 20 24 25 30 40 48 50 60 75 80 100 120 150 200 240 300 400 600 1200 115031689 230063378 345095067 460126756 575158445 690190134 920253512 1150316890 1380380268 1725475335 1840507024 2300633780 2760760536 2875792225 3450950670 4601267560 5521521072 5751584450 6901901340 8627376675 9202535120 11503168900 13803802680 17254753350 23006337800 27607605360 34509506700 46012675600 69019013400 138038026800