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145026930 = 2354834231
BaseRepresentation
bin10001010010011…
…10111101110010
3101002220010112210
420221032331302
5244111330210
622220232550
73410465016
oct1051167562
9332803483
10145026930
1174955974
124069b756
132407a469
1415392546
15caeae20
hex8a4ef72

145026930 has 16 divisors (see below), whose sum is σ = 348064704. Its totient is φ = 38673840.

The previous prime is 145026923. The next prime is 145026989. The reversal of 145026930 is 39620541.

It is a Harshad number since it is a multiple of its sum of digits (30), and also a Moran number because the ratio is a prime number: 4834231 = 145026930 / (1 + 4 + 5 + 0 + 2 + 6 + 9 + 3 + 0).

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2417086 + ... + 2417145.

It is an arithmetic number, because the mean of its divisors is an integer number (21754044).

Almost surely, 2145026930 is an apocalyptic number.

145026930 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

145026930 is an abundant number, since it is smaller than the sum of its proper divisors (203037774).

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

145026930 is a wasteful number, since it uses less digits than its factorization.

145026930 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4834241.

The product of its (nonzero) digits is 6480, while the sum is 30.

The square root of 145026930 is about 12042.7127342638. The cubic root of 145026930 is about 525.3913091720.

The spelling of 145026930 in words is "one hundred forty-five million, twenty-six thousand, nine hundred thirty".

Divisors: 1 2 3 5 6 10 15 30 4834231 9668462 14502693 24171155 29005386 48342310 72513465 145026930