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20012023030 = 2519313397627
BaseRepresentation
bin10010101000110011…
…110011110011110110
31220122200011002202011
4102220303303303312
5311441034214110
613105435034434
71305626250316
oct225063636366
956580132664
1020012023030
11853a2a110a
123a65b9ba1a
131b6c02725c
14d7bb35446
157c1d4348a
hex4a8cf3cf6

20012023030 has 32 divisors (see below), whose sum is σ = 39140674560. Its totient is φ = 7338872160.

The previous prime is 20012023027. The next prime is 20012023033. The reversal of 20012023030 is 3032021002.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (20012023027) and next prime (20012023033).

It is a self number, because there is not a number n which added to its sum of digits gives 20012023030.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20012023033) 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, 1692924 + ... + 1704703.

It is an arithmetic number, because the mean of its divisors is an integer number (1223146080).

Almost surely, 220012023030 is an apocalyptic number.

20012023030 is a deficient number, since it is larger than the sum of its proper divisors (19128651530).

20012023030 is a wasteful number, since it uses less digits than its factorization.

20012023030 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3397684.

The product of its (nonzero) digits is 72, while the sum is 13.

Adding to 20012023030 its reverse (3032021002), we get a palindrome (23044044032).

The spelling of 20012023030 in words is "twenty billion, twelve million, twenty-three thousand, thirty".

Divisors: 1 2 5 10 19 31 38 62 95 155 190 310 589 1178 2945 5890 3397627 6795254 16988135 33976270 64554913 105326437 129109826 210652874 322774565 526632185 645549130 1053264370 2001202303 4002404606 10006011515 20012023030