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145250107 = 322944983
BaseRepresentation
bin10001010100001…
…01011100111011
3101010022110200121
420222011130323
5244141000412
622225114111
73412414462
oct1052053473
9333273617
10145250107
1174a98612
1240788937
1324127c12
141540d9d9
15cb42107
hex8a8573b

145250107 has 4 divisors (see below), whose sum is σ = 145298320. Its totient is φ = 145201896.

The previous prime is 145250101. The next prime is 145250113. The reversal of 145250107 is 701052541.

145250107 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 701052541 = 7100150363.

It is an interprime number because it is at equal distance from previous prime (145250101) and next prime (145250113).

It is a cyclic number.

It is not a de Polignac number, because 145250107 - 223 = 136861499 is a prime.

It is a super-2 number, since 2×1452501072 = 42195187167022898, which contains 22 as substring.

It is an alternating number because its digits alternate between odd and even.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (145250101) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 19263 + ... + 25720.

It is an arithmetic number, because the mean of its divisors is an integer number (36324580).

Almost surely, 2145250107 is an apocalyptic number.

145250107 is a deficient number, since it is larger than the sum of its proper divisors (48213).

145250107 is an equidigital number, since it uses as much as digits as its factorization.

145250107 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 48212.

The product of its (nonzero) digits is 1400, while the sum is 25.

The square root of 145250107 is about 12051.9752323011. The cubic root of 145250107 is about 525.6606733075.

The spelling of 145250107 in words is "one hundred forty-five million, two hundred fifty thousand, one hundred seven".

Divisors: 1 3229 44983 145250107