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30426660040 = 2357195719297
BaseRepresentation
bin11100010101100100…
…011111110011001000
32220112111010110220211
4130111210133303020
5444303211110130
621551112530504
72125000225450
oct342544376310
986474113824
1030426660040
11119a4069037
125a919b0a34
132b3b8ac36a
141688d8cd60
15bd1306a2a
hex71591fcc8

30426660040 has 64 divisors (see below), whose sum is σ = 82357891200. Its totient is φ = 9882943488.

The previous prime is 30426659981. The next prime is 30426660041. The reversal of 30426660040 is 4006662403.

It is a junction number, because it is equal to n+sod(n) for n = 30426659984 and 30426660011.

It is not an unprimeable number, because it can be changed into a prime (30426660041) 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, 2854329 + ... + 2864968.

It is an arithmetic number, because the mean of its divisors is an integer number (1286842050).

Almost surely, 230426660040 is an apocalyptic number.

It is an amenable number.

30426660040 is an abundant number, since it is smaller than the sum of its proper divisors (51931231160).

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

30426660040 is a wasteful number, since it uses less digits than its factorization.

30426660040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5719334 (or 5719330 counting only the distinct ones).

The product of its (nonzero) digits is 20736, while the sum is 31.

The spelling of 30426660040 in words is "thirty billion, four hundred twenty-six million, six hundred sixty thousand, forty".

Divisors: 1 2 4 5 7 8 10 14 19 20 28 35 38 40 56 70 76 95 133 140 152 190 266 280 380 532 665 760 1064 1330 2660 5320 5719297 11438594 22877188 28596485 40035079 45754376 57192970 80070158 108666643 114385940 160140316 200175395 217333286 228771880 320280632 400350790 434666572 543333215 760666501 800701580 869333144 1086666430 1521333002 1601403160 2173332860 3042666004 3803332505 4346665720 6085332008 7606665010 15213330020 30426660040