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1111303421 = 17937916381
BaseRepresentation
bin100001000111101…
…0010010011111101
32212110010001200222
41002033102103331
54233443202141
6302135031125
736352631444
oct10217222375
92773101628
101111303421
11520335788
1227020b4a5
1314930a8b7
14a7841d5b
156786a14b
hex423d24fd

1111303421 has 8 divisors (see below), whose sum is σ = 1120528800. Its totient is φ = 1102111920.

The previous prime is 1111303411. The next prime is 1111303423. The reversal of 1111303421 is 1243031111.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1111303421 - 26 = 1111303357 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1111303421.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1111303423) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 59651 + ... + 76031.

It is an arithmetic number, because the mean of its divisors is an integer number (140066100).

Almost surely, 21111303421 is an apocalyptic number.

It is an amenable number.

1111303421 is a deficient number, since it is larger than the sum of its proper divisors (9225379).

1111303421 is a wasteful number, since it uses less digits than its factorization.

1111303421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16939.

The product of its (nonzero) digits is 72, while the sum is 17.

The square root of 1111303421 is about 33336.2178568595. The cubic root of 1111303421 is about 1035.8039203580.

Adding to 1111303421 its reverse (1243031111), we get a palindrome (2354334532).

The spelling of 1111303421 in words is "one billion, one hundred eleven million, three hundred three thousand, four hundred twenty-one".

Divisors: 1 179 379 16381 67841 2932199 6208399 1111303421