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101220313195 = 5194731172893
BaseRepresentation
bin101111001000100110…
…0110110100001101011
3100200021012212200020201
41132101030312201223
53124244400010240
6114255554333031
710212222315631
oct1362114664153
9320235780221
10101220313195
1139a22256501
121774a58a177
139711596a61
144c8315b351
152976438d9a
hex179133686b

101220313195 has 32 divisors (see below), whose sum is σ = 130999265280. Its totient is φ = 74839674240.

The previous prime is 101220313171. The next prime is 101220313213. The reversal of 101220313195 is 591313022101.

It is not a de Polignac number, because 101220313195 - 225 = 101186758763 is a prime.

It is a super-2 number, since 2×1012203131952 (a number of 23 digits) contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1352169 + ... + 1425061.

It is an arithmetic number, because the mean of its divisors is an integer number (4093727040).

Almost surely, 2101220313195 is an apocalyptic number.

101220313195 is a deficient number, since it is larger than the sum of its proper divisors (29778952085).

101220313195 is a wasteful number, since it uses less digits than its factorization.

101220313195 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 73275.

The product of its (nonzero) digits is 1620, while the sum is 28.

Adding to 101220313195 its reverse (591313022101), we get a palindrome (692533335296).

The spelling of 101220313195 in words is "one hundred one billion, two hundred twenty million, three hundred thirteen thousand, one hundred ninety-five".

Divisors: 1 5 19 47 95 235 311 893 1555 4465 5909 14617 29545 72893 73085 277723 364465 1384967 1388615 3425971 6924835 17129855 22669723 65093449 113348615 325467245 430724737 1065476981 2153623685 5327384905 20244062639 101220313195