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20300401653 = 3710919974441
BaseRepresentation
bin10010111001111111…
…111000101111110101
31221101202210020211220
4102321333320233311
5313033400323103
613154220020553
71316030365320
oct227177705765
957352706756
1020300401653
118678058254
123b26691759
131bb69b64ac
14da81617b7
157dc308c53
hex4b9ff8bf5

20300401653 has 32 divisors (see below), whose sum is σ = 31240408320. Its totient is φ = 11485463040.

The previous prime is 20300401637. The next prime is 20300401669. The reversal of 20300401653 is 35610400302.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (20300401637) and next prime (20300401669).

It is not a de Polignac number, because 20300401653 - 24 = 20300401637 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20300403653) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 4568913 + ... + 4573353.

It is an arithmetic number, because the mean of its divisors is an integer number (976262760).

Almost surely, 220300401653 is an apocalyptic number.

It is an amenable number.

20300401653 is a deficient number, since it is larger than the sum of its proper divisors (10940006667).

20300401653 is a wasteful number, since it uses less digits than its factorization.

20300401653 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6557.

The product of its (nonzero) digits is 2160, while the sum is 24.

Adding to 20300401653 its reverse (35610400302), we get a palindrome (55910801955).

The spelling of 20300401653 in words is "twenty billion, three hundred million, four hundred one thousand, six hundred fifty-three".

Divisors: 1 3 7 21 109 327 763 1997 2289 4441 5991 13323 13979 31087 41937 93261 217673 484069 653019 1452207 1523711 3388483 4571133 8868677 10165449 26606031 62080739 186242217 966685793 2900057379 6766800551 20300401653