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190200000220 = 22510903872237
BaseRepresentation
bin1011000100100011001…
…1011010111011011100
3200011221100212010002121
42301020303122323130
511104012200001340
6223213210032324
716512222220036
oct2611063327334
9604840763077
10190200000220
1173732a3a32a
1230a417186a4
1314c21bb9139
1492c4740c56
154e32e2094a
hex2c48cdaedc

190200000220 has 24 divisors (see below), whose sum is σ = 399457092384. Its totient is φ = 76072934976.

The previous prime is 190200000209. The next prime is 190200000223. The reversal of 190200000220 is 22000002091.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 190200000194 and 190200000203.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (190200000223) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 218059 + ... + 654178.

It is an arithmetic number, because the mean of its divisors is an integer number (16644045516).

Almost surely, 2190200000220 is an apocalyptic number.

190200000220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

190200000220 is the 218060-th decagonal number.

It is an amenable number.

190200000220 is an abundant number, since it is smaller than the sum of its proper divisors (209257092164).

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

190200000220 is a wasteful number, since it uses less digits than its factorization.

190200000220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 883149 (or 883147 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 16.

The spelling of 190200000220 in words is "one hundred ninety billion, two hundred million, two hundred twenty", and thus it is an aban number.

Divisors: 1 2 4 5 10 20 10903 21806 43612 54515 109030 218060 872237 1744474 3488948 4361185 8722370 17444740 9510000011 19020000022 38040000044 47550000055 95100000110 190200000220