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70261211025 = 3352195478457
BaseRepresentation
bin100000101101111100…
…1001111111110010001
320201100121212100001000
41001123321033332101
52122343332223100
652135541332213
75035065303555
oct1013371177621
9221317770030
1070261211025
1127885692855
121174a407069
1368195b3ba5
1435875ad865
151c6350b900
hex105be4ff91

70261211025 has 48 divisors (see below), whose sum is σ = 135865758400. Its totient is φ = 35500394880.

The previous prime is 70261211023. The next prime is 70261211029. The reversal of 70261211025 is 52011216207.

It is not a de Polignac number, because 70261211025 - 21 = 70261211023 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a self number, because there is not a number n which added to its sum of digits gives 70261211025.

It is not an unprimeable number, because it can be changed into a prime (70261211023) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 2726404 + ... + 2752053.

Almost surely, 270261211025 is an apocalyptic number.

70261211025 is a gapful number since it is divisible by the number (75) formed by its first and last digit.

It is an amenable number.

70261211025 is a deficient number, since it is larger than the sum of its proper divisors (65604547375).

70261211025 is a wasteful number, since it uses less digits than its factorization.

70261211025 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5478495 (or 5478484 counting only the distinct ones).

The product of its (nonzero) digits is 1680, while the sum is 27.

The spelling of 70261211025 in words is "seventy billion, two hundred sixty-one million, two hundred eleven thousand, twenty-five".

Divisors: 1 3 5 9 15 19 25 27 45 57 75 95 135 171 225 285 475 513 675 855 1425 2565 4275 12825 5478457 16435371 27392285 49306113 82176855 104090683 136961425 147918339 246530565 312272049 410884275 520453415 739591695 936816147 1232652825 1561360245 2602267075 2810448441 3697958475 4684080735 7806801225 14052242205 23420403675 70261211025