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20102011030 = 2546115592797
BaseRepresentation
bin10010101110001011…
…000101100010010110
31220212221110222002001
4102232023011202112
5312132103323110
613122411505514
71311101163103
oct225613054226
956787428061
1020102011030
118586074462
123a9015829a
131b848738aa
14d89a7baaa
157c9bbb63a
hex4ae2c5896

20102011030 has 32 divisors (see below), whose sum is σ = 36298342080. Its totient is φ = 8015349120.

The previous prime is 20102010953. The next prime is 20102011037. The reversal of 20102011030 is 3011020102.

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

It is a junction number, because it is equal to n+sod(n) for n = 20102010998 and 20102011016.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20102011037) 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, 7185592 + ... + 7188388.

It is an arithmetic number, because the mean of its divisors is an integer number (1134323190).

Almost surely, 220102011030 is an apocalyptic number.

20102011030 is a deficient number, since it is larger than the sum of its proper divisors (16196331050).

20102011030 is a wasteful number, since it uses less digits than its factorization.

20102011030 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4824.

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

Adding to 20102011030 its reverse (3011020102), we get a palindrome (23113031132).

The spelling of 20102011030 in words is "twenty billion, one hundred two million, eleven thousand, thirty".

Divisors: 1 2 5 10 461 922 1559 2305 2797 3118 4610 5594 7795 13985 15590 27970 718699 1289417 1437398 2578834 3593495 4360523 6447085 7186990 8721046 12894170 21802615 43605230 2010201103 4020402206 10051005515 20102011030