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133407430 = 25134312381
BaseRepresentation
bin1111111001110…
…10001011000110
3100022000210120221
413330322023012
5233123014210
621123214554
73206641642
oct774721306
9308023527
10133407430
1169339a82
123881745a
132183c710
1413a09c22
15baa31da
hex7f3a2c6

133407430 has 32 divisors (see below), whose sum is σ = 259314048. Its totient is φ = 49123200.

The previous prime is 133407419. The next prime is 133407473. The reversal of 133407430 is 34704331.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 133407395 and 133407404.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 54840 + ... + 57220.

It is an arithmetic number, because the mean of its divisors is an integer number (8103564).

Almost surely, 2133407430 is an apocalyptic number.

133407430 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

133407430 is a deficient number, since it is larger than the sum of its proper divisors (125906618).

133407430 is a wasteful number, since it uses less digits than its factorization.

133407430 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2832.

The product of its (nonzero) digits is 3024, while the sum is 25.

The square root of 133407430 is about 11550.2134179417. The cubic root of 133407430 is about 510.9675723617.

The spelling of 133407430 in words is "one hundred thirty-three million, four hundred seven thousand, four hundred thirty".

Divisors: 1 2 5 10 13 26 65 130 431 862 2155 2381 4310 4762 5603 11206 11905 23810 28015 30953 56030 61906 154765 309530 1026211 2052422 5131055 10262110 13340743 26681486 66703715 133407430