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229202157 = 3531441523
BaseRepresentation
bin11011010100101…
…01100011101101
3120222021200020210
431222111203231
5432133432112
634424333033
75452120602
oct1552254355
9528250223
10229202157
11108418a78
1264914179
13386400a2
14226246a9
15151c6b3c
hexda958ed

229202157 has 8 divisors (see below), whose sum is σ = 311369184. Its totient is φ = 149918288.

The previous prime is 229202123. The next prime is 229202179. The reversal of 229202157 is 751202922.

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

It is a cyclic number.

It is not a de Polignac number, because 229202157 - 215 = 229169389 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (229202117) 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, 720603 + ... + 720920.

It is an arithmetic number, because the mean of its divisors is an integer number (38921148).

Almost surely, 2229202157 is an apocalyptic number.

It is an amenable number.

229202157 is a deficient number, since it is larger than the sum of its proper divisors (82167027).

229202157 is a wasteful number, since it uses less digits than its factorization.

229202157 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1441579.

The product of its (nonzero) digits is 5040, while the sum is 30.

The square root of 229202157 is about 15139.4239322373. The cubic root of 229202157 is about 611.9832938966.

The spelling of 229202157 in words is "two hundred twenty-nine million, two hundred two thousand, one hundred fifty-seven".

Divisors: 1 3 53 159 1441523 4324569 76400719 229202157