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151121146 = 21129236867
BaseRepresentation
bin10010000000111…
…10110011111010
3101112100202020111
421000132303322
5302141334041
622555014534
73513336301
oct1100366372
9345322214
10151121146
1178338610
124273a44a
13254022c7
14160db438
15d401981
hex901ecfa

151121146 has 16 divisors (see below), whose sum is σ = 255817440. Its totient is φ = 66322480.

The previous prime is 151121141. The next prime is 151121153. The reversal of 151121146 is 641121151.

It is a happy number.

151121146 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (22).

It is not an unprimeable number, because it can be changed into a prime (151121141) 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, 117796 + ... + 119071.

It is an arithmetic number, because the mean of its divisors is an integer number (15988590).

Almost surely, 2151121146 is an apocalyptic number.

151121146 is a deficient number, since it is larger than the sum of its proper divisors (104696294).

151121146 is a wasteful number, since it uses less digits than its factorization.

151121146 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 236909.

The product of its digits is 240, while the sum is 22.

The square root of 151121146 is about 12293.1340999763. The cubic root of 151121146 is about 532.6497727955.

Adding to 151121146 its reverse (641121151), we get a palindrome (792242297).

The spelling of 151121146 in words is "one hundred fifty-one million, one hundred twenty-one thousand, one hundred forty-six".

Divisors: 1 2 11 22 29 58 319 638 236867 473734 2605537 5211074 6869143 13738286 75560573 151121146