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3213975864 = 2331121106741
BaseRepresentation
bin1011111110010001…
…0110000100111000
322021222122220001010
42333210112010320
523040234211424
61250530353520
7142434226011
oct27744260470
98258586033
103213975864
1113aa229700
1275842b8a0
133c2b22c88
14226bc6008
1513c25e229
hexbf916138

3213975864 has 48 divisors (see below), whose sum is σ = 8831801160. Its totient is φ = 973931200.

The previous prime is 3213975857. The next prime is 3213975899. The reversal of 3213975864 is 4685793123.

3213975864 is digitally balanced in base 2 and base 4, because in such bases it contains all the possibile digits an equal number of times.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 550467 + ... + 556274.

Almost surely, 23213975864 is an apocalyptic number.

It is an amenable number.

3213975864 is an abundant number, since it is smaller than the sum of its proper divisors (5617825296).

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

3213975864 is a wasteful number, since it uses less digits than its factorization.

3213975864 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1106772 (or 1106757 counting only the distinct ones).

The product of its digits is 1088640, while the sum is 48.

The square root of 3213975864 is about 56691.9382628606. The cubic root of 3213975864 is about 1475.7547972902.

The spelling of 3213975864 in words is "three billion, two hundred thirteen million, nine hundred seventy-five thousand, eight hundred sixty-four".

Divisors: 1 2 3 4 6 8 11 12 22 24 33 44 66 88 121 132 242 264 363 484 726 968 1452 2904 1106741 2213482 3320223 4426964 6640446 8853928 12174151 13280892 24348302 26561784 36522453 48696604 73044906 97393208 133915661 146089812 267831322 292179624 401746983 535662644 803493966 1071325288 1606987932 3213975864