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20295872346 = 2330203111997
BaseRepresentation
bin10010111001101110…
…100110111101011010
31221101110021010210210
4102321232212331122
5313031220403341
613153534551550
71315644032331
oct227156467532
957343233723
1020295872346
118675544322
123b250685b6
131bb5a8ba29
14da7702d18
157dbc11c16
hex4b9ba6f5a

20295872346 has 16 divisors (see below), whose sum is σ = 40593451104. Its totient is φ = 6765006384.

The previous prime is 20295872279. The next prime is 20295872351. The reversal of 20295872346 is 64327859202.

It is a junction number, because it is equal to n+sod(n) for n = 20295872295 and 20295872304.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 125220 + ... + 237216.

It is an arithmetic number, because the mean of its divisors is an integer number (2537090694).

Almost surely, 220295872346 is an apocalyptic number.

20295872346 is an abundant number, since it is smaller than the sum of its proper divisors (20297578758).

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

20295872346 is a wasteful number, since it uses less digits than its factorization.

20295872346 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 142205.

The product of its (nonzero) digits is 1451520, while the sum is 48.

The spelling of 20295872346 in words is "twenty billion, two hundred ninety-five million, eight hundred seventy-two thousand, three hundred forty-six".

Divisors: 1 2 3 6 30203 60406 90609 111997 181218 223994 335991 671982 3382645391 6765290782 10147936173 20295872346