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20401011030 = 2353121936571
BaseRepresentation
bin10010111111111111…
…101011100101010110
31221122210002201222010
4102333333223211112
5313240124323110
613212212245050
71321361506161
oct227777534526
957583081863
1020401011030
1187199255a4
123b54310786
131c017b147a
14db7670ad8
157e607e020
hex4bffeb956

20401011030 has 32 divisors (see below), whose sum is σ = 50541861888. Its totient is φ = 5264776800.

The previous prime is 20401011023. The next prime is 20401011077. The reversal of 20401011030 is 3011010402.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 20401010997 and 20401011015.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 10967356 + ... + 10969215.

It is an arithmetic number, because the mean of its divisors is an integer number (1579433184).

Almost surely, 220401011030 is an apocalyptic number.

20401011030 is an abundant number, since it is smaller than the sum of its proper divisors (30140850858).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

20401011030 is a wasteful number, since it uses less digits than its factorization.

20401011030 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21936612.

The product of its (nonzero) digits is 24, while the sum is 12.

Adding to 20401011030 its reverse (3011010402), we get a palindrome (23412021432).

The spelling of 20401011030 in words is "twenty billion, four hundred one million, eleven thousand, thirty".

Divisors: 1 2 3 5 6 10 15 30 31 62 93 155 186 310 465 930 21936571 43873142 65809713 109682855 131619426 219365710 329048565 658097130 680033701 1360067402 2040101103 3400168505 4080202206 6800337010 10200505515 20401011030