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20313020213 = 1913175110867
BaseRepresentation
bin10010111010110000…
…000001011100110101
31221102122112100020222
4102322300001130311
5313100113121323
613155350304125
71316242552163
oct227260013465
957378470228
1020313020213
118684196812
123b2a958045
131bb94b3bb5
14da9ac8233
157dd49c9c8
hex4bac01735

20313020213 has 16 divisors (see below), whose sum is σ = 21576023040. Its totient is φ = 19069830000.

The previous prime is 20313020107. The next prime is 20313020237. The reversal of 20313020213 is 31202031302.

It is a cyclic number.

It is not a de Polignac number, because 20313020213 - 226 = 20245911349 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 20313020191 and 20313020200.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20313020293) 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, 1863806 + ... + 1874672.

It is an arithmetic number, because the mean of its divisors is an integer number (1348501440).

Almost surely, 220313020213 is an apocalyptic number.

It is an amenable number.

20313020213 is a deficient number, since it is larger than the sum of its proper divisors (1263002827).

20313020213 is a wasteful number, since it uses less digits than its factorization.

20313020213 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11768.

The product of its (nonzero) digits is 216, while the sum is 17.

Adding to 20313020213 its reverse (31202031302), we get a palindrome (51515051515).

The spelling of 20313020213 in words is "twenty billion, three hundred thirteen million, twenty thousand, two hundred thirteen".

Divisors: 1 19 131 751 2489 10867 14269 98381 206473 1423577 1869239 8161117 27047963 155061223 1069106327 20313020213