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145154461 = 891918539
BaseRepresentation
bin10001010011011…
…10000110011101
3101010010121111011
420221232012131
5244124420321
622223055221
73411535564
oct1051560635
9333117434
10145154461
1174a32771
1240741511
13240c351a
14153c6bdb
15cb23ae1
hex8a6e19d

145154461 has 8 divisors (see below), whose sum is σ = 147571200. Its totient is φ = 142755360.

The previous prime is 145154453. The next prime is 145154479. The reversal of 145154461 is 164451541.

145154461 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 145154461 - 23 = 145154453 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (145154411) 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, 12730 + ... + 21268.

It is an arithmetic number, because the mean of its divisors is an integer number (18446400).

Almost surely, 2145154461 is an apocalyptic number.

It is an amenable number.

145154461 is a deficient number, since it is larger than the sum of its proper divisors (2416739).

145154461 is an equidigital number, since it uses as much as digits as its factorization.

145154461 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8819.

The product of its digits is 9600, while the sum is 31.

The square root of 145154461 is about 12048.0065156025. The cubic root of 145154461 is about 525.5452668967.

The spelling of 145154461 in words is "one hundred forty-five million, one hundred fifty-four thousand, four hundred sixty-one".

Divisors: 1 89 191 8539 16999 759971 1630949 145154461