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101220313230 = 2335374890049
BaseRepresentation
bin101111001000100110…
…0110110100010001110
3100200021012212200022000
41132101030312202032
53124244400010410
6114255554333130
710212222316011
oct1362114664216
9320235780260
10101220313230
1139a22256533
121774a58a1a6
139711596a8a
144c8315b378
152976438dc0
hex179133688e

101220313230 has 32 divisors (see below), whose sum is σ = 269920836000. Its totient is φ = 26992083456.

The previous prime is 101220313223. The next prime is 101220313237. The reversal of 101220313230 is 32313022101.

101220313230 is a `hidden beast` number, since 1 + 0 + 122 + 0 + 313 + 230 = 666.

It is an interprime number because it is at equal distance from previous prime (101220313223) and next prime (101220313237).

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (101220313237) 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, 187444755 + ... + 187445294.

It is an arithmetic number, because the mean of its divisors is an integer number (8435026125).

Almost surely, 2101220313230 is an apocalyptic number.

101220313230 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

101220313230 is an abundant number, since it is smaller than the sum of its proper divisors (168700522770).

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

101220313230 is a wasteful number, since it uses less digits than its factorization.

101220313230 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 374890065 (or 374890059 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 18.

Adding to 101220313230 its reverse (32313022101), we get a palindrome (133533335331).

The spelling of 101220313230 in words is "one hundred one billion, two hundred twenty million, three hundred thirteen thousand, two hundred thirty".

Divisors: 1 2 3 5 6 9 10 15 18 27 30 45 54 90 135 270 374890049 749780098 1124670147 1874450245 2249340294 3374010441 3748900490 5623350735 6748020882 10122031323 11246701470 16870052205 20244062646 33740104410 50610156615 101220313230