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70225456 = 247412373
BaseRepresentation
bin1000010111110…
…00111000110000
311220010211012211
410023320320300
5120434203311
610545101504
71511622640
oct413707060
9156124184
1070225456
1136705474
121b627894
131171a332
149480520
156272821
hex42f8e30

70225456 has 60 divisors (see below), whose sum is σ = 159811696. Its totient is φ = 29283840.

The previous prime is 70225451. The next prime is 70225481. The reversal of 70225456 is 65452207.

It is a super-2 number, since 2×702254562 = 9863229340815872, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (70225451) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 188086 + ... + 188458.

Almost surely, 270225456 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 70225456, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (79905848).

70225456 is an abundant number, since it is smaller than the sum of its proper divisors (89586240).

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

70225456 is a wasteful number, since it uses less digits than its factorization.

70225456 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 470 (or 423 counting only the distinct ones).

The product of its (nonzero) digits is 16800, while the sum is 31.

The square root of 70225456 is about 8380.0630069230. The cubic root of 70225456 is about 412.5705169925.

The spelling of 70225456 in words is "seventy million, two hundred twenty-five thousand, four hundred fifty-six".

Divisors: 1 2 4 7 8 14 16 28 41 56 82 112 164 287 328 373 574 656 746 1148 1492 1681 2296 2611 2984 3362 4592 5222 5968 6724 10444 11767 13448 15293 20888 23534 26896 30586 41776 47068 61172 94136 107051 122344 188272 214102 244688 428204 627013 856408 1254026 1712816 2508052 4389091 5016104 8778182 10032208 17556364 35112728 70225456