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145371320 = 23510135983
BaseRepresentation
bin10001010101000…
…11000010111000
3101010112121221222
420222203002320
5244203340240
622231451212
73413431043
oct1052430270
9333477858
10145371320
1175070696
1240826b08
132416b143
1415441c5a
15cb67eb5
hex8aa30b8

145371320 has 32 divisors (see below), whose sum is σ = 330333120. Its totient is φ = 57571200.

The previous prime is 145371319. The next prime is 145371341. The reversal of 145371320 is 23173541.

It is a super-2 number, since 2×1453713202 = 42265641357084800, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 145371320.

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 7 ways as a sum of consecutive naturals, for example, 13952 + ... + 22031.

It is an arithmetic number, because the mean of its divisors is an integer number (10322910).

Almost surely, 2145371320 is an apocalyptic number.

145371320 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

145371320 is an abundant number, since it is smaller than the sum of its proper divisors (184961800).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

145371320 is a wasteful number, since it uses less digits than its factorization.

145371320 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 36095 (or 36091 counting only the distinct ones).

The product of its (nonzero) digits is 2520, while the sum is 26.

The square root of 145371320 is about 12057.0029443473. The cubic root of 145371320 is about 525.8068560827.

The spelling of 145371320 in words is "one hundred forty-five million, three hundred seventy-one thousand, three hundred twenty".

Divisors: 1 2 4 5 8 10 20 40 101 202 404 505 808 1010 2020 4040 35983 71966 143932 179915 287864 359830 719660 1439320 3634283 7268566 14537132 18171415 29074264 36342830 72685660 145371320