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70225940 = 2253511297
BaseRepresentation
bin1000010111110…
…01000000010100
311220010211212202
410023321000110
5120434212230
610545104032
71511624231
oct413710024
9156124782
1070225940
1136705874
121b628018
131171a615
149480788
156272a45
hex42f9014

70225940 has 12 divisors (see below), whose sum is σ = 147474516. Its totient is φ = 28090368.

The previous prime is 70225937. The next prime is 70225949. The reversal of 70225940 is 4952207.

It can be written as a sum of positive squares in 2 ways, for example, as 9821956 + 60403984 = 3134^2 + 7772^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (70225949) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1755629 + ... + 1755668.

It is an arithmetic number, because the mean of its divisors is an integer number (12289543).

Almost surely, 270225940 is an apocalyptic number.

It is an amenable number.

70225940 is an abundant number, since it is smaller than the sum of its proper divisors (77248576).

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

70225940 is a wasteful number, since it uses less digits than its factorization.

70225940 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3511306 (or 3511304 counting only the distinct ones).

The product of its (nonzero) digits is 5040, while the sum is 29.

The square root of 70225940 is about 8380.0918849378. The cubic root of 70225940 is about 412.5714648144.

The spelling of 70225940 in words is "seventy million, two hundred twenty-five thousand, nine hundred forty".

Divisors: 1 2 4 5 10 20 3511297 7022594 14045188 17556485 35112970 70225940