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100311233020 = 225192357111997
BaseRepresentation
bin101110101101100000…
…0111111000111111100
3100120220212021121200121
41131123000333013330
53120414133424040
6114025441504324
710150543261255
oct1353300770774
9316825247617
10100311233020
11395a6092079
12175360420a4
1395c81413ab
144bd8519b2c
152921716c4a
hex175b03f1fc

100311233020 has 48 divisors (see below), whose sum is σ = 221836678560. Its totient is φ = 37996210944.

The previous prime is 100311232949. The next prime is 100311233021. The reversal of 100311233020 is 20332113001.

It is a junction number, because it is equal to n+sod(n) for n = 100311232985 and 100311233003.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (100311233021) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 839662 + ... + 951658.

It is an arithmetic number, because the mean of its divisors is an integer number (4621597470).

Almost surely, 2100311233020 is an apocalyptic number.

100311233020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

100311233020 is an abundant number, since it is smaller than the sum of its proper divisors (121525445540).

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

100311233020 is a wasteful number, since it uses less digits than its factorization.

100311233020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 114382 (or 114380 counting only the distinct ones).

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

Adding to 100311233020 its reverse (20332113001), we get a palindrome (120643346021).

The spelling of 100311233020 in words is "one hundred billion, three hundred eleven million, two hundred thirty-three thousand, twenty".

Divisors: 1 2 4 5 10 19 20 38 76 95 190 380 2357 4714 9428 11785 23570 44783 47140 89566 111997 179132 223915 223994 447830 447988 559985 895660 1119970 2127943 2239940 4255886 8511772 10639715 21279430 42558860 263976929 527953858 1055907716 1319884645 2639769290 5015561651 5279538580 10031123302 20062246604 25077808255 50155616510 100311233020