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3144145530 = 235281372971
BaseRepresentation
bin1011101101100111…
…1101101001111010
322010010021010211110
42323121331221322
522414400124110
61235553541150
7140625540021
oct27331755172
98103233743
103144145530
111373874089
12738b747b6
133b1513756
1421b8098b8
15136068a20
hexbb67da7a

3144145530 has 32 divisors (see below), whose sum is σ = 7572823488. Its totient is φ = 835452800.

The previous prime is 3144145489. The next prime is 3144145531. The reversal of 3144145530 is 355414413.

It is a super-2 number, since 2×31441455302 = 19771302227637961800, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is not an unprimeable number, because it can be changed into a prime (3144145531) 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, 178056 + ... + 194915.

It is an arithmetic number, because the mean of its divisors is an integer number (236650734).

Almost surely, 23144145530 is an apocalyptic number.

3144145530 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

3144145530 is an abundant number, since it is smaller than the sum of its proper divisors (4428677958).

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

3144145530 is a wasteful number, since it uses less digits than its factorization.

3144145530 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 373262.

The product of its (nonzero) digits is 14400, while the sum is 30.

The square root of 3144145530 is about 56072.6807812860. The cubic root of 3144145530 is about 1464.9884921071.

Adding to 3144145530 its reverse (355414413), we get a palindrome (3499559943).

The spelling of 3144145530 in words is "three billion, one hundred forty-four million, one hundred forty-five thousand, five hundred thirty".

Divisors: 1 2 3 5 6 10 15 30 281 562 843 1405 1686 2810 4215 8430 372971 745942 1118913 1864855 2237826 3729710 5594565 11189130 104804851 209609702 314414553 524024255 628829106 1048048510 1572072765 3144145530