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151023253 = 491307583
BaseRepresentation
bin10010000000001…
…10111010010101
3101112011202221211
421000012322111
5302130221003
622552541421
73512451013
oct1100067225
9345152854
10151023253
1178281007
12426b1871
1325399894
14160b38b3
15d3d296d
hex9006e95

151023253 has 4 divisors (see below), whose sum is σ = 151331328. Its totient is φ = 150715180.

The previous prime is 151023247. The next prime is 151023259. The reversal of 151023253 is 352320151.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 352320151 = 1791968269.

It is an interprime number because it is at equal distance from previous prime (151023247) and next prime (151023259).

It is a cyclic number.

It is not a de Polignac number, because 151023253 - 213 = 151015061 is a prime.

It is a super-3 number, since 3×1510232533 (a number of 26 digits) contains 333 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (151023259) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 153301 + ... + 154282.

It is an arithmetic number, because the mean of its divisors is an integer number (37832832).

Almost surely, 2151023253 is an apocalyptic number.

It is an amenable number.

151023253 is a deficient number, since it is larger than the sum of its proper divisors (308075).

151023253 is an equidigital number, since it uses as much as digits as its factorization.

151023253 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 308074.

The product of its (nonzero) digits is 900, while the sum is 22.

The square root of 151023253 is about 12289.1518421736. The cubic root of 151023253 is about 532.5347349630.

The spelling of 151023253 in words is "one hundred fifty-one million, twenty-three thousand, two hundred fifty-three".

Divisors: 1 491 307583 151023253