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149400041 = 761439797
BaseRepresentation
bin10001110011110…
…10100111101001
3101102010022022212
420321322213221
5301221300131
622454054505
73462610430
oct1071724751
9342108285
10149400041
117737250a
124204a435
1324c4babb
1415bb0117
15d1b1a2b
hex8e7a9e9

149400041 has 16 divisors (see below), whose sum is σ = 174155520. Its totient is φ = 125513280.

The previous prime is 149399993. The next prime is 149400047. The reversal of 149400041 is 140004941.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-149400041 is a prime.

It is not an unprimeable number, because it can be changed into a prime (149400047) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 187055 + ... + 187851.

It is an arithmetic number, because the mean of its divisors is an integer number (10884720).

Almost surely, 2149400041 is an apocalyptic number.

It is an amenable number.

149400041 is a deficient number, since it is larger than the sum of its proper divisors (24755479).

149400041 is an equidigital number, since it uses as much as digits as its factorization.

149400041 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1304.

The product of its (nonzero) digits is 576, while the sum is 23.

The square root of 149400041 is about 12222.9309496536. The cubic root of 149400041 is about 530.6199473946.

Adding to 149400041 its reverse (140004941), we get a palindrome (289404982).

The spelling of 149400041 in words is "one hundred forty-nine million, four hundred thousand, forty-one".

Divisors: 1 7 61 427 439 797 3073 5579 26779 48617 187453 340319 349883 2449181 21342863 149400041