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145244967 = 372988061
BaseRepresentation
bin10001010100001…
…00001100100111
3101010022012122020
420222010030213
5244140314332
622225034223
73412363500
oct1052041447
9333265566
10145244967
1174a9476a
1240785973
132412578a
141540bba7
15cb4082c
hex8a84327

145244967 has 12 divisors (see below), whose sum is σ = 225278136. Its totient is φ = 82997040.

The previous prime is 145244959. The next prime is 145244971. The reversal of 145244967 is 769442541.

It is not a de Polignac number, because 145244967 - 23 = 145244959 is a prime.

It is a super-2 number, since 2×1452449672 = 42192200877662178, which contains 22 as substring.

It is a hoax number, since the sum of its digits (42) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (145234967) 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, 493884 + ... + 494177.

It is an arithmetic number, because the mean of its divisors is an integer number (18773178).

Almost surely, 2145244967 is an apocalyptic number.

145244967 is a deficient number, since it is larger than the sum of its proper divisors (80033169).

145244967 is an equidigital number, since it uses as much as digits as its factorization.

145244967 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 988078 (or 988071 counting only the distinct ones).

The product of its digits is 241920, while the sum is 42.

The square root of 145244967 is about 12051.7619873610. The cubic root of 145244967 is about 525.6544726747.

It can be divided in two parts, 14524 and 4967, that added together give a palindrome (19491).

The spelling of 145244967 in words is "one hundred forty-five million, two hundred forty-four thousand, nine hundred sixty-seven".

Divisors: 1 3 7 21 49 147 988061 2964183 6916427 20749281 48414989 145244967