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193349025 = 36521032
BaseRepresentation
bin10111000011001…
…00010110100001
3111110211011000000
423201210112201
5343444132100
631104050213
74535303532
oct1341442641
9443734000
10193349025
119a15aa91
1254903969
1331098c0c
141b970689
1511e93900
hexb8645a1

193349025 has 63 divisors (see below), whose sum is σ = 362988579. Its totient is φ = 102118320.

The previous prime is 193348979. The next prime is 193349053. The reversal of 193349025 is 520943391.

It is a happy number.

The square root of 193349025 is 13905.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in only one way, i.e., 69605649 + 123743376 = 8343^2 + 11124^2 .

It is a de Polignac number, because none of the positive numbers 2k-193349025 is a prime.

It is a Smith number, since the sum of its digits (36) coincides with the sum of the digits of its prime factors.

It is an unprimeable number.

It is a polite number, since it can be written in 62 ways as a sum of consecutive naturals, for example, 1877124 + ... + 1877226.

Almost surely, 2193349025 is an apocalyptic number.

193349025 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

193349025 is the 13905-th square number.

193349025 is the 6953-rd centered octagonal number.

It is an amenable number.

193349025 is a deficient number, since it is larger than the sum of its proper divisors (169639554).

193349025 is an frugal number, since it uses more digits than its factorization.

193349025 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 234 (or 111 counting only the distinct ones).

The product of its (nonzero) digits is 29160, while the sum is 36.

The cubic root of 193349025 is about 578.2478084369.

Multiplying 193349025 by its sum of digits (36), we get a square (6960564900 = 834302).

The spelling of 193349025 in words is "one hundred ninety-three million, three hundred forty-nine thousand, twenty-five".

Divisors: 1 3 5 9 15 25 27 45 75 81 103 135 225 243 309 405 515 675 729 927 1215 1545 2025 2575 2781 3645 4635 6075 7725 8343 10609 13905 18225 23175 25029 31827 41715 53045 69525 75087 95481 125145 159135 208575 265225 286443 375435 477405 625725 795675 859329 1432215 1877175 2387025 2577987 4296645 7161075 7733961 12889935 21483225 38669805 64449675 193349025