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193100180245 = 5722927178069
BaseRepresentation
bin1011001111010110101…
…0101110101100010101
3200110102111001112011121
42303311222232230111
511130432121231440
6224413051003541
716644126310300
oct2636552565425
9613374045147
10193100180245
1174991021525
1231510a395b1
13152949c0aab
1494bb9a1b37
15505284834a
hex2cf5aaeb15

193100180245 has 24 divisors (see below), whose sum is σ = 278846998200. Its totient is φ = 127845631872.

The previous prime is 193100180183. The next prime is 193100180257. The reversal of 193100180245 is 542081001391.

It can be written as a sum of positive squares in 4 ways, for example, as 4148261649 + 188951918596 = 64407^2 + 434686^2 .

It is not a de Polignac number, because 193100180245 - 29 = 193100179733 is a prime.

It is a super-2 number, since 2×1931001802452 (a number of 23 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 193100180245.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 13581930 + ... + 13596139.

It is an arithmetic number, because the mean of its divisors is an integer number (11618624925).

Almost surely, 2193100180245 is an apocalyptic number.

It is an amenable number.

193100180245 is a deficient number, since it is larger than the sum of its proper divisors (85746817955).

193100180245 is a wasteful number, since it uses less digits than its factorization.

193100180245 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27178117 (or 27178110 counting only the distinct ones).

The product of its (nonzero) digits is 8640, while the sum is 34.

The spelling of 193100180245 in words is "one hundred ninety-three billion, one hundred million, one hundred eighty thousand, two hundred forty-five".

Divisors: 1 5 7 29 35 49 145 203 245 1015 1421 7105 27178069 135890345 190246483 788164001 951232415 1331725381 3940820005 5517148007 6658626905 27585740035 38620036049 193100180245