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145789101 = 32157103177
BaseRepresentation
bin10001011000010…
…01000010101101
3101011022212001100
420230021002231
5244310222401
622244433313
73420121053
oct1054110255
9334285040
10145789101
1175326567
12409a8839
1324286353
14155101d3
15cbebb86
hex8b090ad

145789101 has 12 divisors (see below), whose sum is σ = 211927612. Its totient is φ = 96572736.

The previous prime is 145789099. The next prime is 145789129. The reversal of 145789101 is 101987541.

It can be written as a sum of positive squares in 2 ways, for example, as 51194025 + 94595076 = 7155^2 + 9726^2 .

It is not a de Polignac number, because 145789101 - 21 = 145789099 is a prime.

It is a super-3 number, since 3×1457891013 (a number of 25 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 (145789601) 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 11 ways as a sum of consecutive naturals, for example, 50176 + ... + 53001.

Almost surely, 2145789101 is an apocalyptic number.

It is an amenable number.

145789101 is a deficient number, since it is larger than the sum of its proper divisors (66138511).

145789101 is a wasteful number, since it uses less digits than its factorization.

145789101 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 103340 (or 103337 counting only the distinct ones).

The product of its (nonzero) digits is 10080, while the sum is 36.

The square root of 145789101 is about 12074.3157570108. The cubic root of 145789101 is about 526.3100777905.

The spelling of 145789101 in words is "one hundred forty-five million, seven hundred eighty-nine thousand, one hundred one".

Divisors: 1 3 9 157 471 1413 103177 309531 928593 16198789 48596367 145789101