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20702604376 = 233769941231
BaseRepresentation
bin10011010001111110…
…001010110001011000
31222102210121021021001
4103101332022301120
5314344331320001
613302144354344
71332013143106
oct232176126130
958383537231
1020702604376
1188640980a3
1240193159b4
131c4c11957c
14100573ac76
158127a5001
hex4d1f8ac58

20702604376 has 16 divisors (see below), whose sum is σ = 39866502240. Its totient is φ = 10071537120.

The previous prime is 20702604371. The next prime is 20702604379. The reversal of 20702604376 is 67340620702.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (37).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20702604371) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 34970320 + ... + 34970911.

It is an arithmetic number, because the mean of its divisors is an integer number (2491656390).

Almost surely, 220702604376 is an apocalyptic number.

It is an amenable number.

20702604376 is a deficient number, since it is larger than the sum of its proper divisors (19163897864).

20702604376 is a wasteful number, since it uses less digits than its factorization.

20702604376 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 69941274 (or 69941270 counting only the distinct ones).

The product of its (nonzero) digits is 84672, while the sum is 37.

The spelling of 20702604376 in words is "twenty billion, seven hundred two million, six hundred four thousand, three hundred seventy-six".

Divisors: 1 2 4 8 37 74 148 296 69941231 139882462 279764924 559529848 2587825547 5175651094 10351302188 20702604376