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2113301021 = 132915137123
BaseRepresentation
bin111110111110110…
…0110101000011101
312110021112211000012
41331331212220131
513312001113041
6545411213005
7103240522316
oct17575465035
95407484005
102113301021
119949a3377
124ab8a7165
13278a970a0
1416094d60d
15c57e33eb
hex7df66a1d

2113301021 has 16 divisors (see below), whose sum is σ = 2369996160. Its totient is φ = 1870948800.

The previous prime is 2113300961. The next prime is 2113301023. The reversal of 2113301021 is 1201033112.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-2113301021 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 2113300987 and 2113301005.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2113301023) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 38366 + ... + 75488.

It is an arithmetic number, because the mean of its divisors is an integer number (148124760).

Almost surely, 22113301021 is an apocalyptic number.

It is an amenable number.

2113301021 is a deficient number, since it is larger than the sum of its proper divisors (256695139).

2113301021 is a wasteful number, since it uses less digits than its factorization.

2113301021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 37316.

The product of its (nonzero) digits is 36, while the sum is 14.

The square root of 2113301021 is about 45970.6539109463. The cubic root of 2113301021 is about 1283.2771292790.

Adding to 2113301021 its reverse (1201033112), we get a palindrome (3314334133).

The spelling of 2113301021 in words is "two billion, one hundred thirteen million, three hundred one thousand, twenty-one".

Divisors: 1 13 29 151 377 1963 4379 37123 56927 482599 1076567 5605573 13995371 72872449 162561617 2113301021