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303421069 = 7731015879
BaseRepresentation
bin10010000101011…
…101011010001101
3210010221101110101
4102011131122031
51110133433234
650035211101
710343015350
oct2205353215
9703841411
10303421069
11146300816
1285746a91
134ab27cc3
142c424297
151b987814
hex1215d68d

303421069 has 16 divisors (see below), whose sum is σ = 355057920. Its totient is φ = 253929600.

The previous prime is 303421057. The next prime is 303421081. The reversal of 303421069 is 960124303.

It is an interprime number because it is at equal distance from previous prime (303421057) and next prime (303421081).

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-303421069 is a prime.

It is a super-2 number, since 2×3034210692 = 184128690226205522, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (303421009) 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, 48672 + ... + 54550.

It is an arithmetic number, because the mean of its divisors is an integer number (22191120).

Almost surely, 2303421069 is an apocalyptic number.

It is an amenable number.

303421069 is a deficient number, since it is larger than the sum of its proper divisors (51636851).

303421069 is a wasteful number, since it uses less digits than its factorization.

303421069 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6060.

The product of its (nonzero) digits is 3888, while the sum is 28.

The square root of 303421069 is about 17418.9858774844. The cubic root of 303421069 is about 671.9679785916.

The spelling of 303421069 in words is "three hundred three million, four hundred twenty-one thousand, sixty-nine".

Divisors: 1 7 73 101 511 707 5879 7373 41153 51611 429167 593779 3004169 4156453 43345867 303421069