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4021330230040 = 235732677751431
BaseRepresentation
bin111010100001001001111…
…101011011101100011000
3112020102202102021122202011
4322201021331123230120
51011341141014330130
612315212410515304
7563350211654524
oct72411175335430
915212672248664
104021330230040
111310489096162
1254b43b435b34
13232295c63c26
14dc8c2174d84
156e90d8d852a
hex3a849f5bb18

4021330230040 has 64 divisors (see below), whose sum is σ = 9172458999360. Its totient is φ = 1586407311360.

The previous prime is 4021330230023. The next prime is 4021330230041. The reversal of 4021330230040 is 400320331204.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 4021330229993 and 4021330230020.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4021330230041) 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, 78163125 + ... + 78214555.

It is an arithmetic number, because the mean of its divisors is an integer number (143319671865).

Almost surely, 24021330230040 is an apocalyptic number.

4021330230040 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

4021330230040 is an abundant number, since it is smaller than the sum of its proper divisors (5151128769320).

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

4021330230040 is a wasteful number, since it uses less digits than its factorization.

4021330230040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 78292 (or 78288 counting only the distinct ones).

The product of its (nonzero) digits is 1728, while the sum is 22.

Adding to 4021330230040 its reverse (400320331204), we get a palindrome (4421650561244).

The spelling of 4021330230040 in words is "four trillion, twenty-one billion, three hundred thirty million, two hundred thirty thousand, forty".

Divisors: 1 2 4 5 8 10 20 40 73 146 292 365 584 730 1460 2920 26777 51431 53554 102862 107108 133885 205724 214216 257155 267770 411448 514310 535540 1028620 1071080 1954721 2057240 3754463 3909442 7508926 7818884 9773605 15017852 15637768 18772315 19547210 30035704 37544630 39094420 75089260 78188840 150178520 1377167887 2754335774 5508671548 6885839435 11017343096 13771678870 27543357740 55086715480 100533255751 201066511502 402133023004 502666278755 804266046008 1005332557510 2010665115020 4021330230040