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2972478028 = 22131931374361
BaseRepresentation
bin1011000100101100…
…0110101001001100
321200011020112021211
42301023012221030
522041423244103
61210542304204
7133442434462
oct26113065114
97604215254
102972478028
111295982813
126ab588064
13384a99450
14202ac0832
15125e5936d
hexb12c6a4c

2972478028 has 192 divisors, whose sum is σ = 6501806080. Its totient is φ = 1175731200.

The previous prime is 2972478007. The next prime is 2972478029. The reversal of 2972478028 is 8208742792.

It is not an unprimeable number, because it can be changed into a prime (2972478029) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 48729118 + ... + 48729178.

Almost surely, 22972478028 is an apocalyptic number.

It is an amenable number.

2972478028 is an abundant number, since it is smaller than the sum of its proper divisors (3529328052).

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

2972478028 is a wasteful number, since it uses less digits than its factorization.

2972478028 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 208 (or 206 counting only the distinct ones).

The product of its (nonzero) digits is 903168, while the sum is 49.

The square root of 2972478028 is about 54520.4367920874. The cubic root of 2972478028 is about 1437.8256194733.

The spelling of 2972478028 in words is "two billion, nine hundred seventy-two million, four hundred seventy-eight thousand, twenty-eight".