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3213403040 = 25520083769
BaseRepresentation
bin1011111110001000…
…1010001110100000
322021221120210021102
42333202022032200
523040112344130
61250510213532
7142426321661
oct27742121640
98257523242
103213403040
1113a99782a1
127581b42a8
133c2982323
14226ab7368
1513c199645
hexbf88a3a0

3213403040 has 24 divisors (see below), whose sum is σ = 7591665060. Its totient is φ = 1285361152.

The previous prime is 3213403007. The next prime is 3213403051. The reversal of 3213403040 is 403043123.

It can be written as a sum of positive squares in 2 ways, for example, as 3213075856 + 327184 = 56684^2 + 572^2 .

It is a Harshad number since it is a multiple of its sum of digits (20).

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10041725 + ... + 10042044.

Almost surely, 23213403040 is an apocalyptic number.

It is an amenable number.

3213403040 is an abundant number, since it is smaller than the sum of its proper divisors (4378262020).

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

3213403040 is a wasteful number, since it uses less digits than its factorization.

3213403040 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20083784 (or 20083776 counting only the distinct ones).

The product of its (nonzero) digits is 864, while the sum is 20.

The square root of 3213403040 is about 56686.8859613932. The cubic root of 3213403040 is about 1475.6671179352.

Adding to 3213403040 its reverse (403043123), we get a palindrome (3616446163).

The spelling of 3213403040 in words is "three billion, two hundred thirteen million, four hundred three thousand, forty".

Divisors: 1 2 4 5 8 10 16 20 32 40 80 160 20083769 40167538 80335076 100418845 160670152 200837690 321340304 401675380 642680608 803350760 1606701520 3213403040