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154311092 = 22139730593
BaseRepresentation
bin10010011001010…
…01100110110100
3101202100211000122
421030221212310
5304000423332
623151231112
73552423365
oct1114514664
9352324018
10154311092
117a117231
1243818498
1325c7b250
14166cbb6c
15d831c12
hex93299b4

154311092 has 24 divisors (see below), whose sum is σ = 293824776. Its totient is φ = 70483968.

The previous prime is 154311089. The next prime is 154311097. The reversal of 154311092 is 290113451.

It can be written as a sum of positive squares in 4 ways, for example, as 10407076 + 143904016 = 3226^2 + 11996^2 .

It is a super-2 number, since 2×1543110922 = 47623826228464928, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (26).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (154311097) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 10253 + ... + 20340.

It is an arithmetic number, because the mean of its divisors is an integer number (12242699).

Almost surely, 2154311092 is an apocalyptic number.

It is an amenable number.

154311092 is a deficient number, since it is larger than the sum of its proper divisors (139513684).

154311092 is a wasteful number, since it uses less digits than its factorization.

With its successor (154311093) it forms a Ruth-Aaron pair, since the sum of their distinct prime factors is the same (30705).

With its successor (154311093) it forms an eRAP, since the sums of their prime factors are consecutive (30707 and 30708).

154311092 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30707 (or 30705 counting only the distinct ones).

The product of its (nonzero) digits is 1080, while the sum is 26.

The square root of 154311092 is about 12422.2015762102. The cubic root of 154311092 is about 536.3715262235.

The spelling of 154311092 in words is "one hundred fifty-four million, three hundred eleven thousand, ninety-two".

Divisors: 1 2 4 13 26 52 97 194 388 1261 2522 5044 30593 61186 122372 397709 795418 1590836 2967521 5935042 11870084 38577773 77155546 154311092