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5109723997 = 7934978079
BaseRepresentation
bin1001100001001000…
…00011001101011101
3111012002211212120221
410300210003031131
540431042131442
62203011041341
7240423636340
oct46044031535
914162755527
105109723997
1121923402a4
12ba72a0251
136357c8431
143668a4457
151ed8cc467
hex13090335d

5109723997 has 8 divisors (see below), whose sum is σ = 5840384000. Its totient is φ = 4379238864.

The previous prime is 5109723973. The next prime is 5109724003. The reversal of 5109723997 is 7993279015.

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

It is a de Polignac number, because none of the positive numbers 2k-5109723997 is a prime.

It is a super-3 number, since 3×51097239973 (a number of 30 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5109723917) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 26404 + ... + 104482.

It is an arithmetic number, because the mean of its divisors is an integer number (730048000).

Almost surely, 25109723997 is an apocalyptic number.

It is an amenable number.

5109723997 is a deficient number, since it is larger than the sum of its proper divisors (730660003).

5109723997 is an equidigital number, since it uses as much as digits as its factorization.

5109723997 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 87435.

The product of its (nonzero) digits is 1071630, while the sum is 52.

The square root of 5109723997 is about 71482.3334607930. Note that the first 3 decimals coincide. The cubic root of 5109723997 is about 1722.3939080106.

The spelling of 5109723997 in words is "five billion, one hundred nine million, seven hundred twenty-three thousand, nine hundred ninety-seven".

Divisors: 1 7 9349 65443 78079 546553 729960571 5109723997