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10121220982 = 222073229267
BaseRepresentation
bin10010110110100010…
…11001001101110110
3222010100212022001101
421123101121031312
5131212013032412
64352152520314
7505545646615
oct113321311566
928110768041
1010121220982
114324190144
121b656b009a
13c53b51072
146c02b987c
153e3855457
hex25b459376

10121220982 has 8 divisors (see below), whose sum is σ = 15182585496. Its totient is φ = 5060359152.

The previous prime is 10121220971. The next prime is 10121220983. The reversal of 10121220982 is 28902212101.

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

It is a super-2 number, since 2×101212209822 (a number of 21 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 10121220982.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10121220983) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 70488 + ... + 158779.

It is an arithmetic number, because the mean of its divisors is an integer number (1897823187).

Almost surely, 210121220982 is an apocalyptic number.

10121220982 is a deficient number, since it is larger than the sum of its proper divisors (5061364514).

10121220982 is a wasteful number, since it uses less digits than its factorization.

10121220982 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 251342.

The product of its (nonzero) digits is 1152, while the sum is 28.

The spelling of 10121220982 in words is "ten billion, one hundred twenty-one million, two hundred twenty thousand, nine hundred eighty-two".

Divisors: 1 2 22073 44146 229267 458534 5060610491 10121220982