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5197179645 = 335725121911
BaseRepresentation
bin1001101011100011…
…01010101011111101
3111102012102002012000
410311301222223331
541120434222040
62215413332513
7242535204150
oct46561525375
914365362160
105197179645
112227743a99
121010637139
1364a969238
1437434bc97
15206405130
hex135c6aafd

5197179645 has 64 divisors (see below), whose sum is σ = 10601902080. Its totient is φ = 2366280000.

The previous prime is 5197179641. The next prime is 5197179671. The reversal of 5197179645 is 5469717915.

It is not a de Polignac number, because 5197179645 - 22 = 5197179641 is a prime.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 5197179591 and 5197179600.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5197179641) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 226240 + ... + 248150.

It is an arithmetic number, because the mean of its divisors is an integer number (165654720).

Almost surely, 25197179645 is an apocalyptic number.

It is an amenable number.

5197179645 is an abundant number, since it is smaller than the sum of its proper divisors (5404722435).

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

5197179645 is a wasteful number, since it uses less digits than its factorization.

5197179645 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22183 (or 22177 counting only the distinct ones).

The product of its digits is 2381400, while the sum is 54.

The square root of 5197179645 is about 72091.4672135337. The cubic root of 5197179645 is about 1732.1649358589.

The spelling of 5197179645 in words is "five billion, one hundred ninety-seven million, one hundred seventy-nine thousand, six hundred forty-five".

Divisors: 1 3 5 7 9 15 21 27 35 45 63 105 135 189 251 315 753 945 1255 1757 2259 3765 5271 6777 8785 11295 15813 21911 26355 33885 47439 65733 79065 109555 153377 197199 237195 328665 460131 591597 766885 985995 1380393 2300655 2957985 4141179 5499661 6901965 16498983 20705895 27498305 38497627 49496949 82494915 115492881 148490847 192488135 247484745 346478643 577464405 742454235 1039435929 1732393215 5197179645