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10122111010 = 2511231269851
BaseRepresentation
bin10010110110101001…
…10010100000100010
3222010102112111221101
421123110302200202
5131212230023020
64352223545014
7505556344504
oct113324624042
928112474841
1010122111010
114324738900
121b65a5b16a
13c540a31cb
146c046bd74
153e397e00a
hex25b532822

10122111010 has 48 divisors (see below), whose sum is σ = 20672822016. Its totient is φ = 3562020000.

The previous prime is 10122111001. The next prime is 10122111023. The reversal of 10122111010 is 1011122101.

It is a Harshad number since it is a multiple of its sum of digits (10).

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 97416 + ... + 172435.

It is an arithmetic number, because the mean of its divisors is an integer number (430683792).

Almost surely, 210122111010 is an apocalyptic number.

10122111010 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

10122111010 is an abundant number, since it is smaller than the sum of its proper divisors (10550711006).

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

10122111010 is a wasteful number, since it uses less digits than its factorization.

10122111010 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 269911 (or 269900 counting only the distinct ones).

The product of its (nonzero) digits is 4, while the sum is 10.

Adding to 10122111010 its reverse (1011122101), we get a palindrome (11133233111).

The spelling of 10122111010 in words is "ten billion, one hundred twenty-two million, one hundred eleven thousand, ten".

Divisors: 1 2 5 10 11 22 31 55 62 110 121 155 242 310 341 605 682 1210 1705 3410 3751 7502 18755 37510 269851 539702 1349255 2698510 2968361 5936722 8365381 14841805 16730762 29683610 32651971 41826905 65303942 83653810 92019191 163259855 184038382 326519710 460095955 920191910 1012211101 2024422202 5061055505 10122111010