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145451255330 = 25711031988941
BaseRepresentation
bin1000011101110110010…
…0100000011000100010
3111220102202012100020202
42013131210200120202
54340341010132310
6150452553105202
713336263161663
oct2073544403042
9456382170222
10145451255330
115675a494a37
12242333b8202
1310940069a74
14707b5d736a
153bb45b33a5
hex21dd920622

145451255330 has 32 divisors (see below), whose sum is σ = 268077558528. Its totient is φ = 56804126400.

The previous prime is 145451255311. The next prime is 145451255359. The reversal of 145451255330 is 33552154541.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 921341 + ... + 1067600.

It is an arithmetic number, because the mean of its divisors is an integer number (8377423704).

Almost surely, 2145451255330 is an apocalyptic number.

145451255330 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

145451255330 is a deficient number, since it is larger than the sum of its proper divisors (122626303198).

145451255330 is a wasteful number, since it uses less digits than its factorization.

145451255330 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1989122.

The product of its (nonzero) digits is 180000, while the sum is 38.

The spelling of 145451255330 in words is "one hundred forty-five billion, four hundred fifty-one million, two hundred fifty-five thousand, three hundred thirty".

Divisors: 1 2 5 10 71 103 142 206 355 515 710 1030 7313 14626 36565 73130 1988941 3977882 9944705 19889410 141214811 204860923 282429622 409721846 706074055 1024304615 1412148110 2048609230 14545125533 29090251066 72725627665 145451255330