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234454540 = 22515677481
BaseRepresentation
bin11011111100101…
…11111000001100
3121100011112011111
431332113320030
5440010021130
635133101404
75544554635
oct1576277014
9540145144
10234454540
11110386191
1266627864
133975b9c8
14231d088c
15158b302a
hexdf97e0c

234454540 has 24 divisors (see below), whose sum is σ = 492734592. Its totient is φ = 93709440.

The previous prime is 234454513. The next prime is 234454543. The reversal of 234454540 is 45454432.

It is a super-2 number, since 2×2344545402 = 109937862653223200, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (234454543) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 27600 + ... + 35080.

It is an arithmetic number, because the mean of its divisors is an integer number (20530608).

Almost surely, 2234454540 is an apocalyptic number.

234454540 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

234454540 is an abundant number, since it is smaller than the sum of its proper divisors (258280052).

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

234454540 is a wasteful number, since it uses less digits than its factorization.

234454540 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9057 (or 9055 counting only the distinct ones).

The product of its (nonzero) digits is 38400, while the sum is 31.

The square root of 234454540 is about 15311.9084375528. The cubic root of 234454540 is about 616.6227573638.

The spelling of 234454540 in words is "two hundred thirty-four million, four hundred fifty-four thousand, five hundred forty".

Divisors: 1 2 4 5 10 20 1567 3134 6268 7481 7835 14962 15670 29924 31340 37405 74810 149620 11722727 23445454 46890908 58613635 117227270 234454540