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145232372 = 2238993337
BaseRepresentation
bin10001010100000…
…01000111110100
3101010021120100202
420222001013310
5244134413442
622224500032
73412311665
oct1052010764
9333246322
10145232372
1174a8625a
124077a618
132411cb1c
141540736c
15cb3bc32
hex8a811f4

145232372 has 12 divisors (see below), whose sum is σ = 254812740. Its totient is φ = 72428736.

The previous prime is 145232359. The next prime is 145232387. The reversal of 145232372 is 273232541.

It can be written as a sum of positive squares in 2 ways, for example, as 45751696 + 99480676 = 6764^2 + 9974^2 .

It is a congruent number.

It is an unprimeable number.

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, 45113 + ... + 48224.

It is an arithmetic number, because the mean of its divisors is an integer number (21234395).

Almost surely, 2145232372 is an apocalyptic number.

It is an amenable number.

145232372 is a deficient number, since it is larger than the sum of its proper divisors (109580368).

145232372 is a wasteful number, since it uses less digits than its factorization.

145232372 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 93730 (or 93728 counting only the distinct ones).

The product of its digits is 10080, while the sum is 29.

The square root of 145232372 is about 12051.2394383316. The cubic root of 145232372 is about 525.6392780932.

The spelling of 145232372 in words is "one hundred forty-five million, two hundred thirty-two thousand, three hundred seventy-two".

Divisors: 1 2 4 389 778 1556 93337 186674 373348 36308093 72616186 145232372