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101230011020 = 22540867123853
BaseRepresentation
bin101111001000111000…
…1110110001010001100
3100200021220010101011102
41132101301312022030
53124304340323040
6114300542242232
710212400616315
oct1362161661214
9320256111142
10101230011020
1139a2777a636
1217751886378
1397135b0c08
144c8456360c
152977202515
hex1791c7628c

101230011020 has 24 divisors (see below), whose sum is σ = 212589941424. Its totient is φ = 40490686656.

The previous prime is 101230011011. The next prime is 101230011053. The reversal of 101230011020 is 20110032101.

It is a super-2 number, since 2×1012300110202 (a number of 23 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 101230010992 and 101230011010.

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, 755414 + ... + 879266.

It is an arithmetic number, because the mean of its divisors is an integer number (8857914226).

Almost surely, 2101230011020 is an apocalyptic number.

101230011020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

101230011020 is an abundant number, since it is smaller than the sum of its proper divisors (111359930404).

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

101230011020 is a wasteful number, since it uses less digits than its factorization.

101230011020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 164729 (or 164727 counting only the distinct ones).

The product of its (nonzero) digits is 12, while the sum is 11.

Adding to 101230011020 its reverse (20110032101), we get a palindrome (121340043121).

The spelling of 101230011020 in words is "one hundred one billion, two hundred thirty million, eleven thousand, twenty".

Divisors: 1 2 4 5 10 20 40867 81734 123853 163468 204335 247706 408670 495412 619265 817340 1238530 2477060 5061500551 10123001102 20246002204 25307502755 50615005510 101230011020