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102303221013020 = 22561131640115261
BaseRepresentation
bin10111010000101101010011…
…001001011101101000011100
3111102020002111100222211012102
4113100231103021131220130
5101402113444034404040
61001325241222224232
730356110120551326
oct2720552311355034
9442202440884172
10102303221013020
112a662609249a95
12b583071885078
1345111c9923c81
141b397064dc616
15bc621cb0a515
hex5d0b5325da1c

102303221013020 has 48 divisors (see below), whose sum is σ = 220025538776736. Its totient is φ = 39943192224000.

The previous prime is 102303221012987. The next prime is 102303221013029. The reversal of 102303221013020 is 20310122303201.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a junction number, because it is equal to n+sod(n) for n = 102303221012983 and 102303221013001.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (102303221013029) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 319897811 + ... + 320217450.

It is an arithmetic number, because the mean of its divisors is an integer number (4583865391182).

Almost surely, 2102303221013020 is an apocalyptic number.

102303221013020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

102303221013020 is an abundant number, since it is smaller than the sum of its proper divisors (117722317763716).

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

102303221013020 is a wasteful number, since it uses less digits than its factorization.

102303221013020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 640115462 (or 640115460 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 20.

Adding to 102303221013020 its reverse (20310122303201), we get a palindrome (122613343316221).

The spelling of 102303221013020 in words is "one hundred two trillion, three hundred three billion, two hundred twenty-one million, thirteen thousand, twenty".

Divisors: 1 2 4 5 10 20 61 122 131 244 262 305 524 610 655 1220 1310 2620 7991 15982 31964 39955 79910 159820 640115261 1280230522 2560461044 3200576305 6401152610 12802305220 39047030921 78094061842 83855099191 156188123684 167710198382 195235154605 335420396764 390470309210 419275495955 780940618420 838550991910 1677101983820 5115161050651 10230322101302 20460644202604 25575805253255 51151610506510 102303221013020