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43138298930 = 2531389357727
BaseRepresentation
bin101000001011001111…
…100011010000110010
311010100101022122022012
4220023033203100302
51201321401031210
631452323242522
73055002330236
oct501317432062
9133311278265
1043138298930
1117327499521
12843ab19442
1340b62c9a8c
1421332d45c6
1511c7298305
hexa0b3e3432

43138298930 has 32 divisors (see below), whose sum is σ = 80360017920. Its totient is φ = 16655722560.

The previous prime is 43138298849. The next prime is 43138298933. The reversal of 43138298930 is 3989283134.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (43138298933) 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, 58274 + ... + 299453.

It is an arithmetic number, because the mean of its divisors is an integer number (2511250560).

Almost surely, 243138298930 is an apocalyptic number.

43138298930 is a deficient number, since it is larger than the sum of its proper divisors (37221718990).

43138298930 is a wasteful number, since it uses less digits than its factorization.

43138298930 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 358154.

The product of its (nonzero) digits is 1119744, while the sum is 50.

The spelling of 43138298930 in words is "forty-three billion, one hundred thirty-eight million, two hundred ninety-eight thousand, nine hundred thirty".

Divisors: 1 2 5 10 31 62 155 310 389 778 1945 3890 12059 24118 60295 120590 357727 715454 1788635 3577270 11089537 22179074 55447685 110895370 139155803 278311606 695779015 1391558030 4313829893 8627659786 21569149465 43138298930