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1030401385 = 51317898861
BaseRepresentation
bin111101011010101…
…010110101101001
32122210212210222021
4331122222311221
54102240321020
6250125024441
734351160446
oct7532526551
92583783867
101030401385
114896a88a2
122490b5121
13135622a80
149abc29cd
15606d91aa
hex3d6aad69

1030401385 has 16 divisors (see below), whose sum is σ = 1332490320. Its totient is φ = 760400640.

The previous prime is 1030401377. The next prime is 1030401413. The reversal of 1030401385 is 5831040301.

It can be written as a sum of positive squares in 8 ways, for example, as 119508624 + 910892761 = 10932^2 + 30181^2 .

It is not a de Polignac number, because 1030401385 - 23 = 1030401377 is a prime.

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, 111855 + ... + 120715.

It is an arithmetic number, because the mean of its divisors is an integer number (83280645).

Almost surely, 21030401385 is an apocalyptic number.

It is an amenable number.

1030401385 is a deficient number, since it is larger than the sum of its proper divisors (302088935).

1030401385 is a wasteful number, since it uses less digits than its factorization.

1030401385 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10668.

The product of its (nonzero) digits is 1440, while the sum is 25.

The square root of 1030401385 is about 32099.8658096884. The cubic root of 1030401385 is about 1010.0328012744.

Adding to 1030401385 its reverse (5831040301), we get a palindrome (6861441686).

The spelling of 1030401385 in words is "one billion, thirty million, four hundred one thousand, three hundred eighty-five".

Divisors: 1 5 13 65 1789 8861 8945 23257 44305 115193 116285 575965 15852329 79261645 206080277 1030401385