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20001012310 = 257327398647
BaseRepresentation
bin10010101000001001…
…110011101001010110
31220121220102200212201
4102220021303221112
5311430224343220
613104403035114
71305433541146
oct225011635126
956556380781
1020001012310
118534060644
123a6236ba9a
131b69970636
14d7a4aa926
157c0dbad0a
hex4a8273a56

20001012310 has 16 divisors (see below), whose sum is σ = 36494999136. Its totient is φ = 7890810048.

The previous prime is 20001012307. The next prime is 20001012433. The reversal of 20001012310 is 1321010002.

It is a super-2 number, since 2×200010123102 (a number of 21 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (10).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 13698594 + ... + 13700053.

It is an arithmetic number, because the mean of its divisors is an integer number (2280937446).

Almost surely, 220001012310 is an apocalyptic number.

20001012310 is a deficient number, since it is larger than the sum of its proper divisors (16493986826).

20001012310 is a wasteful number, since it uses less digits than its factorization.

20001012310 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27398727.

The product of its (nonzero) digits is 12, while the sum is 10.

Adding to 20001012310 its reverse (1321010002), we get a palindrome (21322022312).

The spelling of 20001012310 in words is "twenty billion, one million, twelve thousand, three hundred ten".

Divisors: 1 2 5 10 73 146 365 730 27398647 54797294 136993235 273986470 2000101231 4000202462 10000506155 20001012310