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2051143030 = 252910368669
BaseRepresentation
bin111101001000001…
…1111010101110110
312021221120212021101
41322100133111312
513200043034110
6535311040314
7101554266556
oct17220372566
95257525241
102051143030
119628a9132
12492b1009a
13268c42b01
141565ad166
15c011613a
hex7a41f576

2051143030 has 32 divisors (see below), whose sum is σ = 3856507200. Its totient is φ = 784463232.

The previous prime is 2051143021. The next prime is 2051143033. The reversal of 2051143030 is 303411502.

It is a junction number, because it is equal to n+sod(n) for n = 2051142989 and 2051143007.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2051143033) 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, 4465 + ... + 64204.

It is an arithmetic number, because the mean of its divisors is an integer number (120515850).

Almost surely, 22051143030 is an apocalyptic number.

2051143030 is a deficient number, since it is larger than the sum of its proper divisors (1805364170).

2051143030 is a wasteful number, since it uses less digits than its factorization.

2051143030 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 68808.

The product of its (nonzero) digits is 360, while the sum is 19.

The square root of 2051143030 is about 45289.5465863813. The cubic root of 2051143030 is about 1270.5701513399.

Adding to 2051143030 its reverse (303411502), we get a palindrome (2354554532).

The spelling of 2051143030 in words is "two billion, fifty-one million, one hundred forty-three thousand, thirty".

Divisors: 1 2 5 10 29 58 103 145 206 290 515 1030 2987 5974 14935 29870 68669 137338 343345 686690 1991401 3982802 7072907 9957005 14145814 19914010 35364535 70729070 205114303 410228606 1025571515 2051143030