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20495496245 = 57585585607
BaseRepresentation
bin10011000101101000…
…000111010000110101
31221220100220002022112
4103011220013100311
5313433321334440
613225425340405
71323616562240
oct230550072065
957810802275
1020495496245
11876819a754
123b7ba97705
131c18243a93
14dc6028257
157ee4e4965
hex4c5a07435

20495496245 has 8 divisors (see below), whose sum is σ = 28108109184. Its totient is φ = 14054054544.

The previous prime is 20495496227. The next prime is 20495496257. The reversal of 20495496245 is 54269459402.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 20495496245 - 230 = 19421754421 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 20495496193 and 20495496202.

It is a congruent number.

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, 292792769 + ... + 292792838.

It is an arithmetic number, because the mean of its divisors is an integer number (3513513648).

Almost surely, 220495496245 is an apocalyptic number.

It is an amenable number.

20495496245 is a deficient number, since it is larger than the sum of its proper divisors (7612612939).

20495496245 is an equidigital number, since it uses as much as digits as its factorization.

20495496245 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 585585619.

The product of its (nonzero) digits is 3110400, while the sum is 50.

The spelling of 20495496245 in words is "twenty billion, four hundred ninety-five million, four hundred ninety-six thousand, two hundred forty-five".

Divisors: 1 5 7 35 585585607 2927928035 4099099249 20495496245