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5215661353 = 717208721001
BaseRepresentation
bin1001101101110000…
…01010110100101001
3111110111012001022201
410312320022310221
541140202130403
62221313420201
7243151250530
oct46670126451
914414161281
105215661353
112237117631
12101686a661
1365173a566
1437699d317
15207d5621d
hex136e0ad29

5215661353 has 16 divisors (see below), whose sum is σ = 6314713344. Its totient is φ = 4205376000.

The previous prime is 5215661351. The next prime is 5215661359. The reversal of 5215661353 is 3531665125.

It is not a de Polignac number, because 5215661353 - 21 = 5215661351 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (5215661351) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 237853 + ... + 258853.

It is an arithmetic number, because the mean of its divisors is an integer number (394669584).

Almost surely, 25215661353 is an apocalyptic number.

It is an amenable number.

5215661353 is a deficient number, since it is larger than the sum of its proper divisors (1099051991).

5215661353 is a wasteful number, since it uses less digits than its factorization.

5215661353 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23112.

The product of its digits is 81000, while the sum is 37.

The square root of 5215661353 is about 72219.5358126871. The cubic root of 5215661353 is about 1734.2157593129.

The spelling of 5215661353 in words is "five billion, two hundred fifteen million, six hundred sixty-one thousand, three hundred fifty-three".

Divisors: 1 7 17 119 2087 14609 21001 35479 147007 248353 357017 2499119 43829087 306803609 745094479 5215661353