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145344351 = 3471030811
BaseRepresentation
bin10001010100111…
…00011101011111
3101010111020222010
420222130131133
5244202004401
622231122303
73413256315
oct1052343537
9333436863
10145344351
11750523a9
1240813393
132415ba99
14154360b5
15cb5eed6
hex8a9c75f

145344351 has 8 divisors (see below), whose sum is σ = 197915904. Its totient is φ = 94834520.

The previous prime is 145344349. The next prime is 145344359. The reversal of 145344351 is 153443541.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 145344351 - 21 = 145344349 is a prime.

It is a super-2 number, since 2×1453443512 = 42249960735222402, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (145344359) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 515265 + ... + 515546.

It is an arithmetic number, because the mean of its divisors is an integer number (24739488).

Almost surely, 2145344351 is an apocalyptic number.

145344351 is a deficient number, since it is larger than the sum of its proper divisors (52571553).

145344351 is a wasteful number, since it uses less digits than its factorization.

145344351 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1030861.

The product of its digits is 14400, while the sum is 30.

The square root of 145344351 is about 12055.8844967924. The cubic root of 145344351 is about 525.7743385221.

Adding to 145344351 its reverse (153443541), we get a palindrome (298787892).

The spelling of 145344351 in words is "one hundred forty-five million, three hundred forty-four thousand, three hundred fifty-one".

Divisors: 1 3 47 141 1030811 3092433 48448117 145344351