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4249937680 = 245431235447
BaseRepresentation
bin1111110101010000…
…1110011100010000
3101222012000012111021
43331110032130100
532200441001210
61541414525224
7210213605602
oct37524163420
911865005437
104249937680
111890a8509a
129a7366814
13529641931
142c4615172
1519d195bda
hexfd50e710

4249937680 has 40 divisors (see below), whose sum is σ = 10110906432. Its totient is φ = 1660439424.

The previous prime is 4249937663. The next prime is 4249937687. The reversal of 4249937680 is 867399424.

It is a happy number.

4249937680 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a tau number, because it is divible by the number of its divisors (40).

It is not an unprimeable number, because it can be changed into a prime (4249937687) 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, 614284 + ... + 621163.

Almost surely, 24249937680 is an apocalyptic number.

4249937680 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

4249937680 is an abundant number, since it is smaller than the sum of its proper divisors (5860968752).

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

4249937680 is a wasteful number, since it uses less digits than its factorization.

4249937680 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1235503 (or 1235497 counting only the distinct ones).

The product of its (nonzero) digits is 2612736, while the sum is 52.

The square root of 4249937680 is about 65191.5460776932. The cubic root of 4249937680 is about 1619.7979832429.

The spelling of 4249937680 in words is "four billion, two hundred forty-nine million, nine hundred thirty-seven thousand, six hundred eighty".

Divisors: 1 2 4 5 8 10 16 20 40 43 80 86 172 215 344 430 688 860 1720 3440 1235447 2470894 4941788 6177235 9883576 12354470 19767152 24708940 49417880 53124221 98835760 106248442 212496884 265621105 424993768 531242210 849987536 1062484420 2124968840 4249937680