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1220102092 = 221131894503
BaseRepresentation
bin100100010111001…
…0100011111001100
310011000211121102101
41020232110133030
54444321231332
6321023004444
742143460646
oct11056243714
93130747371
101220102092
11576796840
122a0739724
13165a12201
14b8083896
15721abae7
hex48b947cc

1220102092 has 24 divisors (see below), whose sum is σ = 2404426752. Its totient is φ = 536701200.

The previous prime is 1220102089. The next prime is 1220102099. The reversal of 1220102092 is 2902010221.

It is a super-2 number, since 2×12201020922 = 2977298229805552928, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (1220102099) 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, 445888 + ... + 448615.

It is an arithmetic number, because the mean of its divisors is an integer number (100184448).

Almost surely, 21220102092 is an apocalyptic number.

It is an amenable number.

1220102092 is a deficient number, since it is larger than the sum of its proper divisors (1184324660).

1220102092 is a wasteful number, since it uses less digits than its factorization.

1220102092 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 894549 (or 894547 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 19.

The square root of 1220102092 is about 34929.9598053018. The cubic root of 1220102092 is about 1068.5595348741.

The spelling of 1220102092 in words is "one billion, two hundred twenty million, one hundred two thousand, ninety-two".

Divisors: 1 2 4 11 22 31 44 62 124 341 682 1364 894503 1789006 3578012 9839533 19679066 27729593 39358132 55459186 110918372 305025523 610051046 1220102092