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354069157 = 13257105977
BaseRepresentation
bin10101000110101…
…010101010100101
3220200020120120111
4111012222222211
51211120203112
655044533021
711526352411
oct2506525245
9820216514
10354069157
11171954442
129a6b1171
135847c3a0
1435049d41
152113e5a7
hex151aaaa5

354069157 has 8 divisors (see below), whose sum is σ = 382792536. Its totient is φ = 325558272.

The previous prime is 354069151. The next prime is 354069173. The reversal of 354069157 is 751960453.

It can be written as a sum of positive squares in 4 ways, for example, as 90364036 + 263705121 = 9506^2 + 16239^2 .

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

It is a de Polignac number, because none of the positive numbers 2k-354069157 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 (354069151) 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, 49648 + ... + 56329.

It is an arithmetic number, because the mean of its divisors is an integer number (47849067).

Almost surely, 2354069157 is an apocalyptic number.

It is an amenable number.

354069157 is a deficient number, since it is larger than the sum of its proper divisors (28723379).

354069157 is a wasteful number, since it uses less digits than its factorization.

354069157 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 106247.

The product of its (nonzero) digits is 113400, while the sum is 40.

The square root of 354069157 is about 18816.7254590165. The cubic root of 354069157 is about 707.4504583922.

The spelling of 354069157 in words is "three hundred fifty-four million, sixty-nine thousand, one hundred fifty-seven".

Divisors: 1 13 257 3341 105977 1377701 27236089 354069157