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193950897 = 3714876211
BaseRepresentation
bin10111000111101…
…11010010110001
3111111221201121120
423203313102301
5344122412042
631125012453
74543361340
oct1343672261
9444851546
10193950897
119a5311a8
1254b54129
1331249b5a
141ba89b57
1512061dec
hexb8f74b1

193950897 has 16 divisors (see below), whose sum is σ = 295790592. Its totient is φ = 110736720.

The previous prime is 193950839. The next prime is 193950899. The reversal of 193950897 is 798059391.

It is a happy number.

It is not a de Polignac number, because 193950897 - 26 = 193950833 is a prime.

It is not an unprimeable number, because it can be changed into a prime (193950899) 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, 28122 + ... + 34332.

It is an arithmetic number, because the mean of its divisors is an integer number (18486912).

Almost surely, 2193950897 is an apocalyptic number.

It is an amenable number.

193950897 is a deficient number, since it is larger than the sum of its proper divisors (101839695).

193950897 is a wasteful number, since it uses less digits than its factorization.

193950897 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7708.

The product of its (nonzero) digits is 612360, while the sum is 51.

The square root of 193950897 is about 13926.6254706587. The cubic root of 193950897 is about 578.8471919645.

The spelling of 193950897 in words is "one hundred ninety-three million, nine hundred fifty thousand, eight hundred ninety-seven".

Divisors: 1 3 7 21 1487 4461 6211 10409 18633 31227 43477 130431 9235757 27707271 64650299 193950897