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154414420 = 2257720721
BaseRepresentation
bin10010011010000…
…10110101010100
3101202120001202121
421031002311110
5304012230140
623153345324
73553333546
oct1115026524
9352501677
10154414420
117a187926
1243868244
1325cb62a4
1416717696
15d85264a
hex9342d54

154414420 has 12 divisors (see below), whose sum is σ = 324270324. Its totient is φ = 61765760.

The previous prime is 154414373. The next prime is 154414439. The reversal of 154414420 is 24414451.

154414420 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 87534736 + 66879684 = 9356^2 + 8178^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3860341 + ... + 3860380.

It is an arithmetic number, because the mean of its divisors is an integer number (27022527).

Almost surely, 2154414420 is an apocalyptic number.

154414420 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

154414420 is an abundant number, since it is smaller than the sum of its proper divisors (169855904).

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

154414420 is a wasteful number, since it uses less digits than its factorization.

154414420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7720730 (or 7720728 counting only the distinct ones).

The product of its (nonzero) digits is 2560, while the sum is 25.

The square root of 154414420 is about 12426.3598853405. The cubic root of 154414420 is about 536.4912191342.

Adding to 154414420 its reverse (24414451), we get a palindrome (178828871).

The spelling of 154414420 in words is "one hundred fifty-four million, four hundred fourteen thousand, four hundred twenty".

Divisors: 1 2 4 5 10 20 7720721 15441442 30882884 38603605 77207210 154414420