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2943407928 = 2331031190699
BaseRepresentation
bin1010111101110000…
…1101011100111000
321121010112121121110
42233130031130320
522012003023203
61204023240320
7132640361136
oct25734153470
97533477543
102943407928
111280527a3a
126a18a90a0
1337ba5b7c6
141dccb4756
15123615d03
hexaf70d738

2943407928 has 32 divisors (see below), whose sum is σ = 7429968000. Its totient is φ = 971609568.

The previous prime is 2943407927. The next prime is 2943407939. The reversal of 2943407928 is 8297043492.

It is a super-2 number, since 2×29434079282 = 17327300461226506368, which contains 22 as substring.

It is a Smith number, since the sum of its digits (48) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2943407927) 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, 592878 + ... + 597821.

It is an arithmetic number, because the mean of its divisors is an integer number (232186500).

Almost surely, 22943407928 is an apocalyptic number.

It is an amenable number.

2943407928 is an abundant number, since it is smaller than the sum of its proper divisors (4486560072).

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

2943407928 is a wasteful number, since it uses less digits than its factorization.

2943407928 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1190811 (or 1190807 counting only the distinct ones).

The product of its (nonzero) digits is 870912, while the sum is 48.

The square root of 2943407928 is about 54253.1835747913. The cubic root of 2943407928 is about 1433.1230630554.

It can be divided in two parts, 2943 and 407928, that added together give a triangular number (410871 = T906).

The spelling of 2943407928 in words is "two billion, nine hundred forty-three million, four hundred seven thousand, nine hundred twenty-eight".

Divisors: 1 2 3 4 6 8 12 24 103 206 309 412 618 824 1236 2472 1190699 2381398 3572097 4762796 7144194 9525592 14288388 28576776 122641997 245283994 367925991 490567988 735851982 981135976 1471703964 2943407928