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100245397 = 771201701
BaseRepresentation
bin1011111100110…
…01111110010101
320222121222211111
411332121332111
5201130323042
613540335021
72325033430
oct576317625
9228558744
10100245397
115164993a
12296a4471
13179cb405
14d456817
158c02517
hex5f99f95

100245397 has 8 divisors (see below), whose sum is σ = 116180352. Its totient is φ = 84714000.

The previous prime is 100245389. The next prime is 100245401. The reversal of 100245397 is 793542001.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 100245397 - 23 = 100245389 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (100245337) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 100354 + ... + 101347.

It is an arithmetic number, because the mean of its divisors is an integer number (14522544).

Almost surely, 2100245397 is an apocalyptic number.

It is an amenable number.

100245397 is a deficient number, since it is larger than the sum of its proper divisors (15934955).

100245397 is an equidigital number, since it uses as much as digits as its factorization.

100245397 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 201779.

The product of its (nonzero) digits is 7560, while the sum is 31.

The square root of 100245397 is about 10012.2623317610. The cubic root of 100245397 is about 464.5382505367.

Adding to 100245397 its reverse (793542001), we get a palindrome (893787398).

The spelling of 100245397 in words is "one hundred million, two hundred forty-five thousand, three hundred ninety-seven".

Divisors: 1 7 71 497 201701 1411907 14320771 100245397