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245029407 = 3741284587
BaseRepresentation
bin11101001101011…
…01101000011111
3122002001210011020
432212231220133
51000211420112
640151455223
76033500310
oct1646555037
9562053136
10245029407
11116349247
126a087513
133b9c211c
1424784607
15167a148c
hexe9ada1f

245029407 has 16 divisors (see below), whose sum is σ = 382486272. Its totient is φ = 136601280.

The previous prime is 245029399. The next prime is 245029409. The reversal of 245029407 is 704920542.

It is not a de Polignac number, because 245029407 - 23 = 245029399 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (245029409) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 141433 + ... + 143154.

It is an arithmetic number, because the mean of its divisors is an integer number (23905392).

Almost surely, 2245029407 is an apocalyptic number.

245029407 is a deficient number, since it is larger than the sum of its proper divisors (137456865).

245029407 is a wasteful number, since it uses less digits than its factorization.

245029407 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 284638.

The product of its (nonzero) digits is 20160, while the sum is 33.

The square root of 245029407 is about 15653.4151864697. The cubic root of 245029407 is about 625.7575088244.

Adding to 245029407 its reverse (704920542), we get a palindrome (949949949).

The spelling of 245029407 in words is "two hundred forty-five million, twenty-nine thousand, four hundred seven".

Divisors: 1 3 7 21 41 123 287 861 284587 853761 1992109 5976327 11668067 35004201 81676469 245029407