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1220000102 = 23119677421
BaseRepresentation
bin100100010110111…
…1011100101100110
310011000122102111222
41020231323211212
54444310000402
6321020500342
742142554416
oct11055734546
93130572458
101220000102
11576727152
122a06aa6b2
131659a7969
14b8058646
157218b7a2
hex48b7b966

1220000102 has 8 divisors (see below), whose sum is σ = 1889032512. Its totient is φ = 590322600.

The previous prime is 1220000077. The next prime is 1220000107. The reversal of 1220000102 is 2010000221.

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 1220000102.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1220000107) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9838649 + ... + 9838772.

It is an arithmetic number, because the mean of its divisors is an integer number (236129064).

Almost surely, 21220000102 is an apocalyptic number.

1220000102 is a deficient number, since it is larger than the sum of its proper divisors (669032410).

1220000102 is a wasteful number, since it uses less digits than its factorization.

1220000102 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19677454.

The product of its (nonzero) digits is 8, while the sum is 8.

The square root of 1220000102 is about 34928.4998532717. The cubic root of 1220000102 is about 1068.5297599276.

Adding to 1220000102 its reverse (2010000221), we get a palindrome (3230000323).

The spelling of 1220000102 in words is "one billion, two hundred twenty million, one hundred two", and thus it is an aban number.

Divisors: 1 2 31 62 19677421 39354842 610000051 1220000102