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103032131020 = 22571324354697
BaseRepresentation
bin101111111110100110…
…0011000110111001100
3100211221111010120001121
41133331030120313030
53142002211143040
6115155440050324
710305142443430
oct1377514306714
9324844116047
10103032131020
113a771a52005
1217b753039a4
13993ca63c00
144db5a2c9c0
152a30528c4a
hex17fd318dcc

103032131020 has 72 divisors (see below), whose sum is σ = 267761670624. Its totient is φ = 32607963648.

The previous prime is 103032130961. The next prime is 103032131021. The reversal of 103032131020 is 20131230301.

It is a junction number, because it is equal to n+sod(n) for n = 103032130985 and 103032131003.

It is not an unprimeable number, because it can be changed into a prime (103032131021) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 2153689 + ... + 2201008.

It is an arithmetic number, because the mean of its divisors is an integer number (3718912092).

Almost surely, 2103032131020 is an apocalyptic number.

103032131020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

103032131020 is an abundant number, since it is smaller than the sum of its proper divisors (164729539604).

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

103032131020 is a wasteful number, since it uses less digits than its factorization.

103032131020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4354739 (or 4354724 counting only the distinct ones).

The product of its (nonzero) digits is 108, while the sum is 16.

Adding to 103032131020 its reverse (20131230301), we get a palindrome (123163361321).

The spelling of 103032131020 in words is "one hundred three billion, thirty-two million, one hundred thirty-one thousand, twenty".

Divisors: 1 2 4 5 7 10 13 14 20 26 28 35 52 65 70 91 130 140 169 182 260 338 364 455 676 845 910 1183 1690 1820 2366 3380 4732 5915 11830 23660 4354697 8709394 17418788 21773485 30482879 43546970 56611061 60965758 87093940 113222122 121931516 152414395 226444244 283055305 304828790 396277427 566110610 609657580 735943793 792554854 1132221220 1471887586 1585109708 1981387135 2943775172 3679718965 3962774270 5151606551 7359437930 7925548540 10303213102 14718875860 20606426204 25758032755 51516065510 103032131020