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103020504080 = 2451399058177
BaseRepresentation
bin101111111110010000…
…0000010010000010000
3100211220200020211220012
41133330200002100100
53141441222112310
6115154342534052
710304641556564
oct1377440022020
9324820224805
10103020504080
113a76643056a
1217b71437328
13993a522970
144db42836a4
152a2e4cdc05
hex17fc802410

103020504080 has 40 divisors (see below), whose sum is σ = 257947495512. Its totient is φ = 38038339584.

The previous prime is 103020504079. The next prime is 103020504109. The reversal of 103020504080 is 80405020301.

It can be written as a sum of positive squares in 4 ways, for example, as 3740056336 + 99280447744 = 61156^2 + 315088^2 .

It is a tau number, because it is divible by the number of its divisors (40).

It is a super-2 number, since 2×1030205040802 (a number of 23 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 49528049 + ... + 49530128.

Almost surely, 2103020504080 is an apocalyptic number.

103020504080 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

103020504080 is an abundant number, since it is smaller than the sum of its proper divisors (154926991432).

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

103020504080 is a wasteful number, since it uses less digits than its factorization.

103020504080 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 99058203 (or 99058197 counting only the distinct ones).

The product of its (nonzero) digits is 960, while the sum is 23.

Adding to 103020504080 its reverse (80405020301), we get a palindrome (183425524381).

The spelling of 103020504080 in words is "one hundred three billion, twenty million, five hundred four thousand, eighty".

Divisors: 1 2 4 5 8 10 13 16 20 26 40 52 65 80 104 130 208 260 520 1040 99058177 198116354 396232708 495290885 792465416 990581770 1287756301 1584930832 1981163540 2575512602 3962327080 5151025204 6438781505 7924654160 10302050408 12877563010 20604100816 25755126020 51510252040 103020504080