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3123454135 = 52931694873
BaseRepresentation
bin1011101000101100…
…0010000010110111
322001200022220120111
42322023002002313
522344101013020
61233534243451
7140254631164
oct27213020267
98050286514
103123454135
11136312135a
12732056587
133aa14a719
14218b8106b
1513432cd5a
hexba2c20b7

3123454135 has 16 divisors (see below), whose sum is σ = 4002474240. Its totient is φ = 2334769920.

The previous prime is 3123454121. The next prime is 3123454157. The reversal of 3123454135 is 5314543213.

It is a de Polignac number, because none of the positive numbers 2k-3123454135 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (31).

It is a junction number, because it is equal to n+sod(n) for n = 3123454097 and 3123454106.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 342942 + ... + 351931.

It is an arithmetic number, because the mean of its divisors is an integer number (250154640).

Almost surely, 23123454135 is an apocalyptic number.

3123454135 is a deficient number, since it is larger than the sum of its proper divisors (879020105).

3123454135 is a wasteful number, since it uses less digits than its factorization.

3123454135 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 694938.

The product of its digits is 21600, while the sum is 31.

The square root of 3123454135 is about 55887.8710902464. The cubic root of 3123454135 is about 1461.7677553880.

Adding to 3123454135 its reverse (5314543213), we get a palindrome (8437997348).

The spelling of 3123454135 in words is "three billion, one hundred twenty-three million, four hundred fifty-four thousand, one hundred thirty-five".

Divisors: 1 5 29 31 145 155 899 4495 694873 3474365 20151317 21541063 100756585 107705315 624690827 3123454135