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1220010111982 = 23403917920769
BaseRepresentation
bin10001110000001110010…
…001001111001111101110
311022122001121021010021001
4101300032101033033232
5124442040042040412
62332244230430514
7154066662563644
oct21601621171756
94278047233231
101220010111982
114304489a2422
12178542b0243a
138b07b0c315c
1443097cc3194
1521b067a2957
hex11c0e44f3ee

1220010111982 has 8 divisors (see below), whose sum is σ = 1830069032400. Its totient is φ = 609987101184.

The previous prime is 1220010111973. The next prime is 1220010111997. The reversal of 1220010111982 is 2891110100221.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a self number, because there is not a number n which added to its sum of digits gives 1220010111982.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8892307 + ... + 9028462.

It is an arithmetic number, because the mean of its divisors is an integer number (228758629050).

Almost surely, 21220010111982 is an apocalyptic number.

1220010111982 is a deficient number, since it is larger than the sum of its proper divisors (610058920418).

1220010111982 is a wasteful number, since it uses less digits than its factorization.

1220010111982 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17954810.

The product of its (nonzero) digits is 576, while the sum is 28.

The spelling of 1220010111982 in words is "one trillion, two hundred twenty billion, ten million, one hundred eleven thousand, nine hundred eighty-two".

Divisors: 1 2 34039 68078 17920769 35841538 610005055991 1220010111982