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354240207 = 32109336011
BaseRepresentation
bin10101000111010…
…100011011001111
3220200120021012200
4111013110123033
51211141141312
655052332543
711530664166
oct2507243317
9820507180
10354240207
11171a60a02
129a774153
135850c1b9
14350923dd
15211750dc
hex151d46cf

354240207 has 12 divisors (see below), whose sum is σ = 512162664. Its totient is φ = 235937520.

The previous prime is 354240179. The next prime is 354240241. The reversal of 354240207 is 702042453.

354240207 is a `hidden beast` number, since 35 + 424 + 0 + 207 = 666.

It is not a de Polignac number, because 354240207 - 27 = 354240079 is a prime.

It is a super-3 number, since 3×3542402073 (a number of 27 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a hoax number, since the sum of its digits (27) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (354240247) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 8169 + ... + 27842.

It is an arithmetic number, because the mean of its divisors is an integer number (42680222).

Almost surely, 2354240207 is an apocalyptic number.

354240207 is a deficient number, since it is larger than the sum of its proper divisors (157922457).

354240207 is a wasteful number, since it uses less digits than its factorization.

354240207 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 37110 (or 37107 counting only the distinct ones).

The product of its (nonzero) digits is 6720, while the sum is 27.

The square root of 354240207 is about 18821.2700687281. The cubic root of 354240207 is about 707.5643626180.

The spelling of 354240207 in words is "three hundred fifty-four million, two hundred forty thousand, two hundred seven".

Divisors: 1 3 9 1093 3279 9837 36011 108033 324099 39360023 118080069 354240207